text:
Bohrium
From Wikipedia, the free encyclopedia
Jump to: navigation, search
Not to be confused with chemical borium or elements boron (B) or barium (Ba).
Bohrium, 107Bh
General properties
Pronunciation
/ˈbɔːriəm/ ( listen) (BOR-ee-əm)
Mass number
270 (most stable isotope) (unconfirmed: 278)
Bohrium in the periodic table
Hydrogen Helium
Lithium Beryllium Boron Carbon Nitrogen Oxygen Fluorine Neon
Sodium Magnesium Aluminium Silicon Phosphorus Sulfur Chlorine Argon
Potassium Calcium Scandium Titanium Vanadium Chromium Manganese Iron Cobalt Nickel Copper Zinc Gallium Germanium Arsenic Selenium Bromine Krypton
Rubidium Strontium Yttrium Zirconium Niobium Molybdenum Technetium Ruthenium Rhodium Palladium Silver Cadmium Indium Tin Antimony Tellurium Iodine Xenon
Caesium Barium Lanthanum Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium Thulium Ytterbium Lutetium Hafnium Tantalum Tungsten Rhenium Osmium Iridium Platinum Gold Mercury (element) Thallium Lead Bismuth Polonium Astatine Radon
Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium Curium Berkelium Californium Einsteinium Fermium Mendelevium Nobelium Lawrencium Rutherfordium Dubnium Seaborgium Bohrium Hassium Meitnerium Darmstadtium Roentgenium Copernicium Nihonium Flerovium Moscovium Livermorium Tennessine Oganesson
Re
↑
Bh
↓
(Uhu)
seaborgium ← bohrium → hassium
Atomic number (Z)
107
Group
group 7
Period
period 7
Element category
transition metal
Block
d-block
Electron configuration
[Rn] 5f14 6d5 7s2[1][2]
Electrons per shell
2, 8, 18, 32, 32, 13, 2
Physical properties
Phase at STP
solid (predicted)[3]
Density (near r.t.)
37.1 g/cm3 (predicted)[2][4]
Atomic properties
Oxidation states
7, (5), (4), (3)[2][4] (parenthesized oxidation states are predictions)
Ionization energies
1st: 740 kJ/mol
2nd: 1690 kJ/mol
3rd: 2570 kJ/mol
(more) (all but first estimated)[2]
Atomic radius
empirical: 128 pm (predicted)[2]
Covalent radius
141 pm (estimated)[5]
Miscellanea
Crystal structure
hexagonal close-packed (hcp)
(predicted)[3]
CAS Number
54037-14-8
History
Naming
after Niels Bohr
Discovery
Gesellschaft für Schwerionenforschung (1981)
Main isotopes of bohrium
Isotope
Abundance
Half-life (t1/2)
Decay mode
Product
278Bh[6]
syn 11.5 min? SF
274Bh
syn 44 s[7] α 270Db
272Bh
syn 11 s α 268Db
271Bh
syn 1.5 s[8] α 267Db
270Bh
syn 1 min α 266Db
267Bh
syn 17 s α 263Db
view
talk
edit
| references | in Wikidata
Bohrium is a synthetic chemical element with symbol Bh and atomic number 107. It is named after Danish physicist Niels Bohr. As a synthetic element, it can be created in a laboratory but is not found in nature. It is radioactive: its most stable known isotope, 270Bh, has a half-life of approximately 61 seconds, though the unconfirmed 278Bh may have a longer half-life of about 690 seconds.
In the periodic table of the elements, it is a d-block transactinide element. It is a member of the 7th period and belongs to the group 7 elements as the fifth member of the 6d series of transition metals. Chemistry experiments have confirmed that bohrium behaves as the heavier homologue to rhenium in group 7. The chemical properties of bohrium are characterized only partly, but they compare well with the chemistry of the other group 7 elements.
Contents
[hide]
1 History
1.1 Discovery
1.2 Proposed names
2 Isotopes
3 Predicted properties
3.1 Chemical
3.2 Physical and atomic
4 Experimental chemistry
5 References
6 External links
History[edit]
Element 107 was originally proposed to be named after Niels Bohr, a Danish nuclear physicist, with the name nielsbohrium (Ns). This name was later changed by IUPAC to bohrium (Bh).
Discovery[edit]
Two groups claimed discovery of the element. Evidence of bohrium was first reported in 1976 by a Russian research team led by Yuri Oganessian, in which targets of bismuth-209 and lead-208 were bombarded with accelerated nuclei of chromium-54 and manganese-55 respectively.[9] Two activities, one with a half-life of one to two milliseconds, and the other with an approximately five-second half-life, were seen. Since the ratio of the intensities of these two activities was constant throughout the experiment, it was proposed that the first was from the isotope bohrium-261 and that the second was from its daughter dubnium-257. Later, the dubnium isotope was corrected to dubnium-258, which indeed has a five-second half-life (dubnium-257 has a one-second half-life); however, the half-life observed for its parent is much shorter than the half-lives later observed in the definitive discovery of bohrium at Darmstadt in 1981. The IUPAC/IUPAP Transfermium Working Group (TWG) concluded that while dubnium-258 was probably seen in this experiment, the evidence for the production of its parent bohrium-262 was not convincing enough.[10]
In 1981, a German research team led by Peter Armbruster and Gottfried Münzenberg at the GSI Helmholtz Centre for Heavy Ion Research (GSI Helmholtzzentrum für Schwerionenforschung) in Darmstadt bombarded a target of bismuth-209 with accelerated nuclei of chromium-54 to produce 5 atoms of the isotope bohrium-262:[11]
209
83Bi
+ 54
24Cr
→ 262
107Bh
+
n
This discovery was further substantiated by their detailed measurements of the alpha decay chain of the produced bohrium atoms to previously known isotopes of fermium and californium. The IUPAC/IUPAP Transfermium Working Group (TWG) recognised the GSI collaboration as official discoverers in their 1992 report.[10]
Proposed names[edit]
Naming ceremony conducted at the GSI on 7 September 1992 for the namings of elements 107, 108, and 109 as nielsbohrium, hassium, and meitnerium
In September 1992, the German group suggested the name nielsbohrium with symbol Ns to honor the Danish physicist Niels Bohr. The Soviet scientists at the Joint Institute for Nuclear Research in Dubna, Russia had suggested this name be given to element 105 (which was finally called dubnium) and the German team wished to recognise both Bohr and the fact that the Dubna team had been the first to propose the cold fusion reaction to solve the controversial problem of the naming of element 105. The Dubna team agreed with the German group's naming proposal for element 107.[12]
There was an element naming controversy as to what the elements from 104 to 106 were to be called; the IUPAC adopted unnilseptium (symbol Uns) as a temporary, systematic element name for this element.[13] In 1994 a committee of IUPAC recommended that element 107 be named bohrium, not nielsbohrium, since there was no precedence for using a scientist's complete name in the naming of an element.[13][14] This was opposed by the discoverers as there was some concern that the name might be confused with boron and in particular the distinguishing of the names of their respective oxyanions, bohrate and borate. The matter was handed to the Danish branch of IUPAC which, despite this, voted in favour of the name bohrium, and thus the name bohrium for element 107 was recognized internationally in 1997;[13] the names of the respective oxyanions of boron and bohrium remain unchanged despite their homophony.[15]
Isotopes[edit]
Main article: Isotopes of bohrium
List of bohrium isotopes
Isotope
Half-life
[16][17]
Decay
mode[16][17]
Discovery
year
Reaction
260Bh 00000035 !35 ms α 2007 209Bi(52Cr,n)[18]
261Bh 000000118 !11.8 ms α 1986 209Bi(54Cr,2n)[19]
262Bh 00000084 !84 ms α 1981 209Bi(54Cr,n)[11]
262mBh 000000096 !9.6 ms α 1981 209Bi(54Cr,n)[11]
263Bh 000000002 !0.2? ms α ? unknown —
264Bh 000097 !0.97 s α 1994 272Rg(—,2α)[20]
265Bh 00009 !0.9 s α 2004 243Am(26Mg,4n)[21]
266Bh 00009 !0.9 s α 2000 249Bk(22Ne,5n)[22]
267Bh 0017 !17 s α 2000 249Bk(22Ne,4n)[22]
268Bh 0025 !25? s α, SF? unknown —
269Bh 0025 !25? s α ? unknown —
270Bh 0061 !61 s α 2006 282Nh(—,3α)[23]
271Bh 00012 !1.2 s α 2003 287Mc(—,4α)[23]
272Bh 00098 !9.8 s α 2005 288Mc(—,4α)[23]
273Bh 5400 !90? min α, SF ? unknown —
274Bh 00040 !40 s α 2009 294Ts(—,5α)[7]
275Bh 2400 !40? min SF ? unknown —
276Bh — — unknown —
277Bh — — unknown —
278Bh 0690 !11.5 min? SF 1998? 290Fl(e−,νe3α)?
Bohrium has no stable or naturally occurring isotopes. Several radioactive isotopes have been synthesized in the laboratory, either by fusing two atoms or by observing the decay of heavier elements. Twelve different isotopes of bohrium have been reported with atomic masses 260–262, 264–267, 270–272, 274, and 278, one of which, bohrium-262, has a known metastable state. All of these but the unconfirmed 278Bh decay only through alpha decay, although some unknown bohrium isotopes are predicted to undergo spontaneous fission.[16]
The lighter isotopes usually have shorter half-lives; half-lives of under 100 ms for 260Bh, 261Bh, 262Bh, and 262mBh were observed. 264Bh, 265Bh, 266Bh, and 271Bh are more stable at around 1 s, and 267Bh and 272Bh have half-lives of about 10 s. The heaviest isotopes are the most stable, with 270Bh and 274Bh having measured half-lives of about 61 s and 40 s respectively, and the even heavier unconfirmed isotope 278Bh appearing to have an even longer half-life of about 690 s. The unknown isotopes 273Bh and 275Bh are predicted to have even longer half-lives of around 90 minutes and 40 minutes respectively. Before its discovery, 274Bh was also predicted to have a long half-life of 90 minutes, but it was found to have a shorter half-life of only about 40 seconds.[16]
The proton-rich isotopes with masses 260, 261, and 262 were directly produced by cold fusion, those with mass 262 and 264 were reported in the decay chains of meitnerium and roentgenium, while the neutron-rich isotopes with masses 265, 266, 267 were created in irradiations of actinide targets. The five most neutron-rich ones with masses 270, 271, 272, 274, and 278 (unconfirmed) appear in the decay chains of 282Nh, 287Mc, 288Mc, 294Ts, and 290Fl respectively. These eleven isotopes have half-lives ranging from about ten milliseconds for 262mBh to about one minute for 270Bh and 274Bh, extending to about twelve minutes for the unconfirmed 278Bh, one of the longest-lived known superheavy nuclides.[24]
Predicted properties[edit]
Chemical[edit]
Bohrium is the fifth member of the 6d series of transition metals and the heaviest member of group 7 in the periodic table, below manganese, technetium and rhenium. All the members of the group readily portray their group oxidation state of +7 and the state becomes more stable as the group is descended. Thus bohrium is expected to form a stable +7 state. Technetium also shows a stable +4 state whilst rhenium exhibits stable +4 and +3 states. Bohrium may therefore show these lower states as well.[4] The higher +7 oxidation state is more likely to exist in oxyanions, such as perbohrate, BhO−
4, analogous to the lighter permanganate, pertechnetate, and perrhenate. Nevertheless, bohrium(VII) is likely to be unstable in aqueous solution, and would probably be easily reduced to the more stable bohrium(IV).[2]
Technetium and rhenium are known to form volatile heptoxides M2O7 (M = Tc, Re), so bohrium should also form the volatile oxide Bh2O7. The oxide should dissolve in water to form perbohric acid, HBhO4. Rhenium and technetium form a range of oxyhalides from the halogenation of the oxide. The chlorination of the oxide forms the oxychlorides MO3Cl, so BhO3Cl should be formed in this reaction. Fluorination results in MO3F and MO2F3 for the heavier elements in addition to the rhenium compounds ReOF5 and ReF7. Therefore, oxyfluoride formation for bohrium may help to indicate eka-rhenium properties.[25] Since the oxychlorides are asymmetrical, and they should have increasingly large dipole moments going down the group, they should become less volatile in the order TcO3Cl > ReO3Cl > BhO3Cl: this was experimentally confirmed in 2000 by measuring the enthalpies of adsorption of these three compounds. The values are for TcO3Cl and ReO3Cl are −51 kJ/mol and −61 kJ/mol respectively; the experimental value for BhO3Cl is −77.8 kJ/mol, very close to the theoretically expected value of −78.5 kJ/mol.[2]
Physical and atomic[edit]
Bohrium is expected to be a solid under normal conditions and assume a hexagonal close-packed crystal structure (c/a = 1.62), similar to its lighter congener rhenium.[3] It should be a very heavy metal with a density of around 37.1 g/cm3, which would be the third-highest of any of the 118 known elements, lower than only meitnerium (37.4 g/cm3) and hassium (41 g/cm3), the two following elements in the periodic table. In comparison, the densest known element that has had its density measured, osmium, has a density of only 22.61 g/cm3. This results from bohrium's high atomic weight, the lanthanide and actinide contractions, and relativistic effects, although production of enough bohrium to measure this quantity would be impractical, and the sample would quickly decay.[2]
The atomic radius of bohrium is expected to be around 128 pm.[2] Due to the relativistic stabilization of the 7s orbital and destabilization of the 6d orbital, the Bh+ ion is predicted to have an electron configuration of [Rn] 5f14 6d4 7s2, giving up a 6d electron instead of a 7s electron, which is the opposite of the behavior of its lighter homologues manganese and technetium. Rhenium, on the other hand, follows its heavier congener bohrium in giving up a 5d electron before a 6s electron, as relativistic effects have become significant by the sixth period, where they cause among other things the yellow color of gold and the low melting point of mercury. The Bh2+ ion is expected to have an electron configuration of [Rn] 5f14 6d3 7s2; in contrast, the Re2+ ion is expected to have a [Xe] 4f14 5d5 configuration, this time analogous to manganese and technetium.[2] The ionic radius of hexacoordinate heptavalent bohrium is expected to be 58 pm (heptavalent manganese, technetium, and rhenium having values of 46, 57, and 53 pm respectively). Pentavalent bohrium should have a larger ionic radius of 83 pm.[2]
Experimental chemistry[edit]
In 1995, the first report on attempted isolation of the element was unsuccessful, prompting new theoretical studies to investigate how best to investigate bohrium (using its lighter homologs technetium and rhenium for comparison) and removing unwanted contaminating elements such as the trivalent actinides, the group 5 elements, and polonium.[26]
In 2000, it was confirmed that although relativistic effects are important, bohrium behaves like a typical group 7 element.[27] A team at the Paul Scherrer Institute (PSI) conducted a chemistry reaction using six atoms of 267Bh produced in the reaction between 249Bk and 22Ne ions. The resulting atoms were thermalised and reacted with a HCl/O2 mixture to form a volatile oxychloride. The reaction also produced isotopes of its lighter homologues, technetium (as 108Tc) and rhenium (as 169Re). The isothermal adsorption curves were measured and gave strong evidence for the formation of a volatile oxychloride with properties similar to that of rhenium oxychloride. This placed bohrium as a typical member of group 7.[28] The adsorption enthalpies of the oxychlorides of technetium, rhenium, and bohrium were measured in this experiment, agreeing very well with the theoretical predictions and implying a sequence of decreasing oxychloride volatility down group 7 of TcO3Cl > ReO3Cl > BhO3Cl.[2]
2 Bh + 3 O
2 + 2 HCl → 2 BhO
3Cl + H
2
The longer-lived heavy isotopes of bohrium, produced as the daughters of heavier elements, offer advantages for future radiochemical experiments. Although the heavy isotope 274Bh requires a rare and highly radioactive berkelium target for its product, the isotopes 272Bh, 271Bh, and 270Bh can be readily produced as daughters of more easily produced moscovium and nihonium isotopes.[29]
References[edit]
Jump up ^ Johnson, E.; Fricke, B.; Jacob, T.; Dong, C. Z.; Fritzsche, S.; Pershina, V. (2002). "Ionization potentials and radii of neutral and ionized species of elements 107 (bohrium) and 108 (hassium) from extended multiconfiguration Dirac–Fock calculations". The Journal of Chemical Physics. 116: 1862. Bibcode:2002JChPh.116.1862J. doi:10.1063/1.1430256.
^ Jump up to: a b c d e f g h i j k l Hoffman, Darleane C.; Lee, Diana M.; Pershina, Valeria (2006). "Transactinides and the future elements". In Morss; Edelstein, Norman M.; Fuger, Jean. The Chemistry of the Actinide and Transactinide Elements (3rd ed.). Dordrecht, The Netherlands: Springer Science+Business Media. ISBN 1-4020-3555-1.
^ Jump up to: a b c Östlin, A.; Vitos, L. (2011). "First-principles calculation of the structural stability of 6d transition metals". Physical Review B. 84 (11). Bibcode:2011PhRvB..84k3104O. doi:10.1103/PhysRevB.84.113104.
^ Jump up to: a b c Fricke, Burkhard (1975). "Superheavy elements: a prediction of their chemical and physical properties". Recent Impact of Physics on Inorganic Chemistry. 21: 89–144. doi:10.1007/BFb0116498. Retrieved 4 October 2013.
Jump up ^ Chemical Data. Bohrium - Bh, Royal Chemical Society
Jump up ^ Hofmann, S.; Heinz, S.; Mann, R.; Maurer, J.; Münzenberg, G.; Antalic, S.; Barth, W.; Burkhard, H. G.; Dahl, L.; Eberhardt, K.; Grzywacz, R.; Hamilton, J. H.; Henderson, R. A.; Kenneally, J. M.; Kindler, B.; Kojouharov, I.; Lang, R.; Lommel, B.; Miernik, K.; Miller, D.; Moody, K. J.; Morita, K.; Nishio, K.; Popeko, A. G.; Roberto, J. B.; Runke, J.; Rykaczewski, K. P.; Saro, S.; Scheidenberger, C.; Schött, H. J.; Shaughnessy, D. A.; Stoyer, M. A.; Thörle-Popiesch, P.; Tinschert, K.; Trautmann, N.; Uusitalo, J.; Yeremin, A. V. (2016). "Review of even element super-heavy nuclei and search for element 120". The European Physics Journal A. 2016 (52). Bibcode:2016EPJA...52..180H. doi:10.1140/epja/i2016-16180-4.
^ Jump up to: a b Oganessian, Yuri Ts.; Abdullin, F. Sh.; Bailey, P. D.; et al. (2010-04-09). "Synthesis of a New Element with Atomic Number Z=117". Physical Review Letters. American Physical Society. 104 (142502). Bibcode:2010PhRvL.104n2502O. doi:10.1103/PhysRevLett.104.142502. PMID 20481935. (gives life-time of 1.3 min based on a single event; conversion to half-life is done by multiplying with ln(2).)
Jump up ^ FUSHE (2012). "Synthesis of SH-nuclei". Retrieved August 12, 2016.
Jump up ^ Yu. Ts. Oganessian et al. On spontaneous fission of neutron-deficient isotopes of elements 103, 105 and 107 // Nuclear Physics A. — 1976. — Т. 273. — № 2. — С. 505-522.
^ Jump up to: a b Barber, R. C.; Greenwood, N. N.; Hrynkiewicz, A. Z.; Jeannin, Y. P.; Lefort, M.; Sakai, M.; Ulehla, I.; Wapstra, A. P.; Wilkinson, D. H. (1993). "Discovery of the transfermium elements. Part II: Introduction to discovery profiles. Part III: Discovery profiles of the transfermium elements". Pure and Applied Chemistry. 65 (8): 1757. doi:10.1351/pac199365081757.
^ Jump up to: a b c Münzenberg, G.; Hofmann, S.; Heßberger, F. P.; Reisdorf, W.; Schmidt, K. H.; Schneider, J. H. R.; Armbruster, P.; Sahm, C. C.; Thuma, B. (1981). "Identification of element 107 by α correlation chains". Zeitschrift für Physik A. 300 (1): 107–8. Bibcode:1981ZPhyA.300..107M. doi:10.1007/BF01412623. Retrieved 24 December 2016.
Jump up ^ Ghiorso, A.; Seaborg, G. T.; Organessian, Yu. Ts.; Zvara, I.; Armbruster, P.; Hessberger, F. P.; Hofmann, S.; Leino, M.; Munzenberg, G.; Reisdorf, W.; Schmidt, K.-H. (1993). "Responses on 'Discovery of the transfermium elements' by Lawrence Berkeley Laboratory, California; Joint Institute for Nuclear Research, Dubna; and Gesellschaft fur Schwerionenforschung, Darmstadt followed by reply to responses by the Transfermium Working Group". Pure and Applied Chemistry. 65 (8): 1815–1824. doi:10.1351/pac199365081815.
^ Jump up to: a b c "Names and symbols of transfermium elements (IUPAC Recommendations 1997)". Pure and Applied Chemistry. 69 (12): 2471. 1997. doi:10.1351/pac199769122471.
Jump up ^ "Names and symbols of transfermium elements (IUPAC Recommendations 1994)". Pure and Applied Chemistry. 66 (12): 2419. 1994. doi:10.1351/pac199466122419.
Jump up ^ International Union of Pure and Applied Chemistry (2005). Nomenclature of Inorganic Chemistry (IUPAC Recommendations 2005). Cambridge (UK): RSC–IUPAC. ISBN 0-85404-438-8. pp. 337–9. Electronic version.
^ Jump up to: a b c d Sonzogni, Alejandro. "Interactive Chart of Nuclides". National Nuclear Data Center: Brookhaven National Laboratory. Retrieved 2008-06-06.
^ Jump up to: a b Gray, Theodore (2002–2010). "The Photographic Periodic Table of the Elements". periodictable.com. Retrieved 16 November 2012.
Jump up ^ Nelson, S.; Gregorich, K.; Dragojević, I.; Garcia, M.; Gates, J.; Sudowe, R.; Nitsche, H. (2008). "Lightest Isotope of Bh Produced via the Bi209(Cr52,n)Bh260 Reaction" (PDF). Physical Review Letters. 100 (2): 022501. Bibcode:2008PhRvL.100b2501N. doi:10.1103/PhysRevLett.100.022501. PMID 18232860.
Jump up ^ Münzenberg, G.; Armbruster, P.; Hofmann, S.; Heßberger, F. P.; Folger, H.; Keller, J. G.; Ninov, V.; Poppensieker, K.; et al. (1989). "Element 107". Zeitschrift für Physik A. 333 (2): 163. Bibcode:1989ZPhyA.333..163M. doi:10.1007/BF01565147.
Jump up ^ Hofmann, S.; Ninov, V.; Heßberger, F. P.; Armbruster, P.; Folger, H.; Münzenberg, G.; Schött, H. J.; Popeko, A. G.; Yeremin, A. V.; Andreyev, A. N.; Saro, S.; Janik, R.; Leino, M. (1995). "The new element 111". Zeitschrift für Physik A. 350 (4): 281. Bibcode:1995ZPhyA.350..281H. doi:10.1007/BF01291182.
Jump up ^ Gan, Z.G.; Guo, J. S.; Wu, X. L.; Qin, Z.; Fan, H. M.; Lei, X. G.; Liu, H. Y.; Guo, B.; et al. (2004). "New isotope 265Bh". The European Physical Journal A. 20 (3): 385. Bibcode:2004EPJA...20..385G. doi:10.1140/epja/i2004-10020-2.
^ Jump up to: a b Wilk, P. A.; Gregorich, K. E.; Turler, A.; Laue, C. A.; Eichler, R.; Ninov V, V.; Adams, J. L.; Kirbach, U. W.; et al. (2000). "Evidence for New Isotopes of Element 107: 266Bh and 267Bh". Physical Review Letters. 85 (13): 2697–700. Bibcode:2000PhRvL..85.2697W. doi:10.1103/PhysRevLett.85.2697. PMID 10991211.
^ Jump up to: a b c Oganessian, Yu. Ts.; Penionzhkevich, Yu. E.; Cherepanov, E. A. (2007). "AIP Conference Proceedings: Heaviest Nuclei Produced in 48Ca-induced Reactions (Synthesis and Decay Properties)". 912: 235. doi:10.1063/1.2746600.
Jump up ^ Münzenberg, G.; Gupta, M. (2011). "Handbook of Nuclear Chemistry: Production and Identification of Transactinide Elements": 877. doi:10.1007/978-1-4419-0720-2_19. ISBN 978-1-4419-0719-6.
Jump up ^ Hans Georg Nadler "Rhenium and Rhenium Compounds" Ullmann's Encyclopedia of Industrial Chemistry, Wiley-VCH, Weinheim, 2000. doi:10.1002/14356007.a23_199
Jump up ^ Malmbeck, R.; Skarnemark, G.; Alstad, J.; Fure, K.; Johansson, M.; Omtvedt, J. P. (2000). "Chemical Separation Procedure Proposed for Studies of Bohrium". Journal of Radioanalytical and Nuclear Chemistry. 246 (2): 349. doi:10.1023/A:1006791027906.
Jump up ^ Gäggeler, H. W.; Eichler, R.; Brüchle, W.; Dressler, R.; Düllmann, Ch. E.; Eichler, B.; Gregorich, K. E.; Hoffman, D. C.; et al. (2000). "Chemical characterization of bohrium (element 107)". Nature. 407 (6800): 63–5. Bibcode:2000Natur.407...63E. doi:10.1038/35024044. PMID 10993071.
Jump up ^ Eichler; et al. "Gas chemical investigation of bohrium (Bh, element 107)" (PDF). GSI Annual Report 2000. Archived from the original (PDF) on 2012-02-19. Retrieved 2008-02-29. CS1 maint: Explicit use of et al. (link)
Jump up ^ Moody, Ken. "Synthesis of Superheavy Elements". In Schädel, Matthias; Shaughnessy, Dawn. The Chemistry of Superheavy Elements (2nd ed.). Springer Science & Business Media. pp. 24–8. ISBN 9783642374661.
External links[edit]
Bohrium at The Periodic Table of Videos (University of Nottingham)
[hide]
v
t
e
Periodic table (Large cells)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
1
H He
2
Li Be B C N O F Ne
3
Na Mg Al Si P S Cl Ar
4
K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr
5
Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe
6
Cs Ba La Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn
7
Fr Ra Ac Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr Rf Db Sg Bh Hs Mt Ds Rg Cn Nh Fl Mc Lv Ts Og
Alkali metal Alkaline earth metal Lanthanide Actinide Transition metal Post-transition metal Metalloid Reactive nonmetal Noble gas Unknown
chemical
properties
Authority control
GND: 4518310-7
Retrieved from "https://en.wikipedia.org/w/index.php?title=Bohrium&oldid=832722040"
Categories:
Bohrium
Chemical elements
Transition metals
Synthetic elements
Hidden categories:
CS1 maint: Explicit use of et al.
Good articles
Articles with hAudio microformats
Articles including recorded pronunciations (English)
Wikipedia articles with GND identifiers
Navigation menu
Personal tools
Not logged in
Talk
Contributions
Create account
Log in
Namespaces
Article
Talk
Variants
Views
Read
Edit
View history
More
Search
Navigation
Main page
Contents
Featured content
Current events
Random article
Donate to Wikipedia
Wikipedia store
Interaction
Help
About Wikipedia
Community portal
Recent changes
Contact page
Tools
What links here
Related changes
Upload file
Special pages
Permanent link
Page information
Wikidata item
Cite this page
Print/export
Create a book
Download as PDF
Printable version
In other projects
Wikimedia Commons
Languages
Afrikaans
አማርኛ
العربية
Aragonés
Armãneashti
Asturianu
Azərbaycanca
বাংলা
Bân-lâm-gú
Беларуская
Беларуская (тарашкевіца)
Български
བོད་ཡིག
Bosanski
Brezhoneg
Català
Чӑвашла
Cebuano
Čeština
Corsu
Cymraeg
Dansk
Deutsch
Eesti
Ελληνικά
Español
Esperanto
Euskara
فارسی
Fiji Hindi
Français
Furlan
Gaeilge
Gaelg
Gàidhlig
Galego
ગુજરાતી
客家語/Hak-kâ-ngî
Хальмг
한국어
Հայերեն
हिन्दी
Hrvatski
Ido
Bahasa Indonesia
Interlingua
Italiano
עברית
Basa Jawa
ಕನ್ನಡ
Қазақша
Kiswahili
Коми
Kreyòl ayisyen
Kurdî
Кыргызча
Кырык мары
Latina
Latviešu
Lëtzebuergesch
Lietuvių
Ligure
Limburgs
La .lojban.
Magyar
Македонски
മലയാളം
मराठी
Bahasa Melayu
Mìng-dĕ̤ng-ngṳ̄
Монгол
Nederlands
नेपाली
नेपाल भाषा
日本語
Norsk
Norsk nynorsk
ଓଡ଼ିଆ
Oʻzbekcha/ўзбекча
पालि
پنجابی
Polski
Português
Română
Runa Simi
Русский
संस्कृतम्
Scots
Seeltersk
Shqip
Sicilianu
Simple English
Slovenčina
Slovenščina
Soomaaliga
کوردی
Српски / srpski
Srpskohrvatski / српскохрватски
Suomi
Svenska
Tagalog
தமிழ்
Татарча/tatarça
తెలుగు
ไทย
Türkçe
Українська
اردو
ئۇيغۇرچە / Uyghurche
Vepsän kel’
Tiếng Việt
文言
Winaray
Yorùbá
粵語
中文
Kabɩyɛ
108 more
Edit links
This page was last edited on 27 March 2018, at 17:02.
Text is available under the Creative Commons Attribution-ShareAlike License; additional terms may apply. By using this site, you agree to the Terms of Use and Privacy Policy. Wikipedia® is a registered trademark of the Wikimedia Foundation, Inc., a non-profit organization.
Privacy policy
About Wikipedia
Disclaimers
Contact Wikipedia
Developers
Cookie statement
Mobile view
Enable previews

value: mw-page-base noprint

value: mw-head-base noprint

value: This is a good article. Follow the link for more information.

value: firstHeading firstHeading en

value: siteSub noprint

value: jump-to-nav mw-jump

value:
note
hatnote navigation-not-searchable

tag: sub

value: display:block;width:6px;height:8px;overflow:hidden;padding:0;color:transparent;background-color:#ffc0c0; border:1px solid black; margin:-1px;

value: empty-cells:hidden; border:none; padding:0; border-spacing:1px; border-collapse:separate; margin:0;

value: background-color:transparent; margin:0; padding:0; text-align:center; border:none;

value: vertical-align:middle; text-align:center; font-size:90%; line-height:100%; width:10px; border:none;

value: text-align:center; font-size:90%; line-height:100%; padding-top:0; padding-bottom:1px; border:none;

value: text-align:center; margin:0 auto; background:transparent; border:none;

value: text-align:center; width:100%; margin:0; border-width:1px; background:#f8f8f8;

value: display:inline-block; vertical-align:middle; width:6px; height:8px; border:1px solid black; background:#ffc0c0

value: Standard conditions for temperature and pressure

value: STP: standard temperature and pressure: 0 °C and 101.325 kPa

value: Molar ionization energies of the elements

value: Hexagonal close-packed crystal structure for bohrium

value: Timeline of chemical element discoveries

value: text-align: center; width: 100%; border-collapse: collapse; margin: 0; padding: 0;

value: List of data references for chemical elements

value:
/wiki/Chemical_properties
mw-redirect
Chemical properties

value: GSI Helmholtz Centre for Heavy Ion Research

value:
/wiki/Element_naming_controversy
mw-redirect
Element naming controversy

value:
headerSort
0
columnheader button
Sort ascending

value:
/wiki/Metastable_state
mw-redirect
Metastable state

value:
/wiki/Hexagonal_close-packed
mw-redirect
Hexagonal close-packed

value:
nofollow
external text
//doi.org/10.1063%2F1.1430256

value:
nofollow
external text
//doi.org/10.1103%2FPhysRevB.84.113104

value:
nofollow
external text
//doi.org/10.1007%2FBFb0116498

value:
/wiki/PubMed_Identifier
mw-redirect
PubMed Identifier

value:
nofollow
external text
//www.ncbi.nlm.nih.gov/pubmed/20481935

value:
nofollow
external text
//doi.org/10.1351%2Fpac199365081757

value:
nofollow
external text
//doi.org/10.1007%2FBF01412623

value:
nofollow
external text
//doi.org/10.1351%2Fpac199365081815

value:
nofollow
external text
//doi.org/10.1351%2Fpac199769122471

value:
nofollow
external text
//doi.org/10.1351%2Fpac199466122419

value: International Union of Pure and Applied Chemistry

value:
nofollow
http://periodictable.com/
external text

value:
nofollow
external text
//www.ncbi.nlm.nih.gov/pubmed/18232860

value:
nofollow
external text
//doi.org/10.1007%2FBF01565147

value:
nofollow
external text
//doi.org/10.1007%2FBF01291182

value:
nofollow
external text
//doi.org/10.1103%2FPhysRevLett.85.2697

value:
nofollow
external text
//www.ncbi.nlm.nih.gov/pubmed/10991211

value:
nofollow
external text
//doi.org/10.1063%2F1.2746600

value:
nofollow
external text
//doi.org/10.1023%2FA%3A1006791027906

value:
nofollow
external text
//doi.org/10.1038%2F35024044

value:
nofollow
external text
//www.ncbi.nlm.nih.gov/pubmed/10993071

value: Category:CS1 maint: Explicit use of et al.

value: -moz-column-width: 30em; -webkit-column-width: 30em; column-width: 30em; list-style-type: decimal;

value:
/wiki/The_Periodic_Table_of_Videos
mw-redirect
The Periodic Table of Videos

value: Template:Periodic table (32 columns, compact)

value: Template talk:Periodic table (32 columns, compact)

value: text-align:center; background:#ffc0c0; border:2px solid black; ;

value: Meitnerium, 109 (unknown chemical properties)

value: Darmstadtium, 110 (unknown chemical properties)

value: Roentgenium, 111 (unknown chemical properties)

value: Copernicium, 112 (post-transition metal)

value: Nihonium, 113 (unknown chemical properties)

value: Flerovium, 114 (unknown chemical properties)

value: Moscovium, 115 (unknown chemical properties)

value: Livermorium, 116 (unknown chemical properties)

value: Tennessine, 117 (unknown chemical properties)

value: Oganesson, 118 (unknown chemical properties)

value:
0
table-layout:fixed; width:100%;
periodic-table-legend

value:
/wiki/Reactive_nonmetal
mw-redirect
Reactive nonmetal

value: padding:0em 0.25em border: 1px solid #a2a9b1; width:100%; line-height:120%; text-align:center; vertical-align:top; font-size:85%; background:#f8f8f8; margin:0; font-size:90%; margin-top:0.5em; padding:0.3em;

value: nowraplinks collapsible expanded navbox-inner

value:
nofollow
external text
https://d-nb.info/gnd/4518310-7

value: Category:Articles with hAudio microformats

value: Category:Articles including recorded pronunciations (English)

value: Category:Wikipedia articles with GND identifiers

value: Discussion about edits from this IP address [ctrl-alt-n]

value:
/wiki/Bohrium
View the content page [ctrl-alt-c]
c

value:
/w/index.php?title=Bohrium&action=edit
Edit this page [ctrl-alt-e]
e

value: Featured content – the best of Wikipedia

value: Find background information on current events

value:
/wiki/Special:Random
Load a random article [ctrl-alt-x]
x

value: portal navigation p-navigation p-navigation-label

value: Guidance on how to use and edit Wikipedia

value: About the project, what you can do, where to find things

value: A list of recent changes in the wiki [ctrl-alt-r]

value: portal navigation p-interaction p-interaction-label

value: List of all English Wikipedia pages containing links to this page [ctrl-alt-j]

value: Recent changes in pages linked from this page [ctrl-alt-k]

value:
/wiki/Wikipedia:File_Upload_Wizard
Upload files [ctrl-alt-u]
u

value: A list of all special pages [ctrl-alt-q]

value: Permanent link to this revision of the page

value: Link to connected data repository item [ctrl-alt-g]

value: Printable version of this page [ctrl-alt-p]

value: portal navigation p-wikibase-otherprojects p-wikibase-otherprojects-label

value:
https://af.wikipedia.org/wiki/Bohrium
Bohrium – Afrikaans
af
af
interlanguage-link-target

value:
interlanguage-link interwiki-af
display: none;

value:
interlanguage-link interwiki-am
display: none;

value: بوريوم – Arabic

value:
https://an.wikipedia.org/wiki/Bohrio
Bohrio – Aragonese
an
an
interlanguage-link-target

value:
interlanguage-link interwiki-an
display: none;

value:
interlanguage-link interwiki-roa-rup
display: none;

value:
https://ast.wikipedia.org/wiki/Bohriu
Bohriu – Asturian
ast
ast
interlanguage-link-target

value:
interlanguage-link interwiki-ast
display: none;

value:
https://az.wikipedia.org/wiki/Borium
Borium – Azerbaijani
az
az
interlanguage-link-target

value:
interlanguage-link interwiki-az
display: none;

value: বোহরিয়াম – Bangla

value:
interlanguage-link interwiki-bn
display: none;

value:
interlanguage-link interwiki-zh-min-nan
display: none;

value:
interlanguage-link interwiki-be
display: none;

value: Борыюм – Belarusian (Taraškievica orthography)

value:
interlanguage-link interwiki-be-x-old
display: none;

value:
interlanguage-link interwiki-bg
display: none;

value: བོཧ་རིམ། – Tibetan

value:
interlanguage-link interwiki-bo
display: none;

value:
https://bs.wikipedia.org/wiki/Borij
Borij – Bosnian
bs
bs
interlanguage-link-target

value:
interlanguage-link interwiki-bs
display: none;

value:
https://br.wikipedia.org/wiki/Bohriom
Bohriom – Breton
br
br
interlanguage-link-target

value:
interlanguage-link interwiki-br
display: none;

value:
https://ca.wikipedia.org/wiki/Bohri
Bohri – Catalan
ca
ca
interlanguage-link-target

value:
interlanguage-link interwiki-ca
display: none;

value:
interlanguage-link interwiki-cv
display: none;

value:
https://ceb.wikipedia.org/wiki/Bohryo
Bohryo – Cebuano
ceb
ceb
interlanguage-link-target

value:
interlanguage-link interwiki-ceb
display: none;

value:
https://cs.wikipedia.org/wiki/Bohrium
Bohrium – Czech
cs
cs
interlanguage-link-target

value:
interlanguage-link interwiki-cs
display: none;

value:
https://co.wikipedia.org/wiki/Bohriu
Bohriu – Corsican
co
co
interlanguage-link-target

value:
interlanguage-link interwiki-co
display: none;

value:
https://cy.wikipedia.org/wiki/Bohriwm
Bohriwm – Welsh
cy
cy
interlanguage-link-target

value:
interlanguage-link interwiki-cy
display: none;

value:
https://da.wikipedia.org/wiki/Bohrium
Bohrium – Danish
da
da
interlanguage-link-target

value:
interlanguage-link interwiki-da
display: none;

value:
https://de.wikipedia.org/wiki/Bohrium
Bohrium – German
de
de
interlanguage-link-target

value:
interlanguage-link interwiki-de
display: none;

value:
https://et.wikipedia.org/wiki/Bohrium
Bohrium – Estonian
et
et
interlanguage-link-target

value:
interlanguage-link interwiki-et
display: none;

value: Μπόριο – Greek

value:
interlanguage-link interwiki-el
display: none;

value:
https://es.wikipedia.org/wiki/Bohrio
Bohrio – Spanish
es
es
interlanguage-link-target

value:
https://eo.wikipedia.org/wiki/Borio
Borio – Esperanto
eo
eo
interlanguage-link-target

value:
interlanguage-link interwiki-eo
display: none;

value:
https://eu.wikipedia.org/wiki/Bohrio
Bohrio – Basque
eu
eu
interlanguage-link-target

value:
interlanguage-link interwiki-eu
display: none;

value: بوهریم – Persian

value:
interlanguage-link interwiki-fa
display: none;

value:
https://hif.wikipedia.org/wiki/Bohrium
Bohrium – Fiji Hindi
hif
hif
interlanguage-link-target

value:
interlanguage-link interwiki-hif
display: none;

value:
https://fr.wikipedia.org/wiki/Bohrium
Bohrium – French
fr
fr
interlanguage-link-target

value:
interlanguage-link interwiki-fr
display: none;

value:
https://fur.wikipedia.org/wiki/Bohri
Bohri – Friulian
fur
fur
interlanguage-link-target

value:
interlanguage-link interwiki-fur
display: none;

value:
interlanguage-link interwiki-ga
display: none;

value:
https://gv.wikipedia.org/wiki/Bohrium
Bohrium – Manx
gv
gv
interlanguage-link-target

value:
interlanguage-link interwiki-gv
display: none;

value:
https://gd.wikipedia.org/wiki/Bohrium
Bohrium – Scottish Gaelic
gd
gd
interlanguage-link-target

value:
interlanguage-link interwiki-gd
display: none;

value:
https://gl.wikipedia.org/wiki/Bohrio
Bohrio – Galician
gl
gl
interlanguage-link-target

value:
interlanguage-link interwiki-gl
display: none;

value: બોહ્રીયમ – Gujarati

value:
interlanguage-link interwiki-gu
display: none;

value:
https://hak.wikipedia.org/wiki/Bohrium
Bohrium – Hakka Chinese
hak
hak
interlanguage-link-target

value:
interlanguage-link interwiki-hak
display: none;

value: Борум – Kalmyk

value:
interlanguage-link interwiki-xal
display: none;

value:
interlanguage-link interwiki-ko
display: none;

value: Բորիում – Armenian

value:
interlanguage-link interwiki-hy
display: none;

value: बोरियम – Hindi

value:
https://hr.wikipedia.org/wiki/Borij
Borij – Croatian
hr
hr
interlanguage-link-target

value:
interlanguage-link interwiki-hr
display: none;

value:
https://io.wikipedia.org/wiki/Boriumo
Boriumo – Ido
io
io
interlanguage-link-target

value:
interlanguage-link interwiki-io
display: none;

value:
https://id.wikipedia.org/wiki/Bohrium
Bohrium – Indonesian
id
id
interlanguage-link-target

value:
https://ia.wikipedia.org/wiki/Bohrium
Bohrium – Interlingua
ia
ia
interlanguage-link-target

value:
interlanguage-link interwiki-ia
display: none;

value:
https://it.wikipedia.org/wiki/Bohrio
Bohrio – Italian
it
it
interlanguage-link-target

value:
interlanguage-link interwiki-it
display: none;

value: בוהריום – Hebrew

value:
interlanguage-link interwiki-he
display: none;

value:
https://jv.wikipedia.org/wiki/Bohrium
Bohrium – Javanese
jv
jv
interlanguage-link-target

value:
interlanguage-link interwiki-jv
display: none;

value: ಬೊಹ್ರಿಯಮ್ – Kannada

value:
interlanguage-link interwiki-kn
display: none;

value: Борий – Kazakh

value:
interlanguage-link interwiki-kk
display: none;

value:
https://sw.wikipedia.org/wiki/Bohri
Bohri – Swahili
sw
sw
interlanguage-link-target

value:
interlanguage-link interwiki-sw
display: none;

value: Борий – Komi

value:
interlanguage-link interwiki-kv
display: none;

value:
interlanguage-link interwiki-ht
display: none;

value:
interlanguage-link interwiki-ku
display: none;

value: Борий – Kyrgyz

value:
interlanguage-link interwiki-ky
display: none;

value:
interlanguage-link interwiki-mrj
display: none;

value:
https://la.wikipedia.org/wiki/Bohrium
Bohrium – Latin
la
la
interlanguage-link-target

value:
interlanguage-link interwiki-la
display: none;

value:
https://lv.wikipedia.org/wiki/Borijs
Borijs – Latvian
lv
lv
interlanguage-link-target

value:
interlanguage-link interwiki-lv
display: none;

value:
https://lb.wikipedia.org/wiki/Bohrium
Bohrium – Luxembourgish
lb
lb
interlanguage-link-target

value:
interlanguage-link interwiki-lb
display: none;

value:
https://lt.wikipedia.org/wiki/Boris
Boris – Lithuanian
lt
lt
interlanguage-link-target

value:
interlanguage-link interwiki-lt
display: none;

value:
https://lij.wikipedia.org/wiki/Bohrio
Bohrio – Ligurian
lij
lij
interlanguage-link-target

value:
interlanguage-link interwiki-lij
display: none;

value:
https://li.wikipedia.org/wiki/Bohrium
Bohrium – Limburgish
li
li
interlanguage-link-target

value:
interlanguage-link interwiki-li
display: none;

value:
interlanguage-link interwiki-jbo
display: none;

value:
https://hu.wikipedia.org/wiki/Borium
Borium – Hungarian
hu
hu
interlanguage-link-target

value:
interlanguage-link interwiki-hu
display: none;

value:
interlanguage-link interwiki-mk
display: none;

value:
interlanguage-link interwiki-ml
display: none;

value: बोहरियम – Marathi

value:
interlanguage-link interwiki-mr
display: none;

value:
https://ms.wikipedia.org/wiki/Bohrium
Bohrium – Malay
ms
ms
interlanguage-link-target

value:
https://cdo.wikipedia.org/wiki/Bohrium
Bohrium – Min Dong Chinese
cdo
cdo
interlanguage-link-target

value:
interlanguage-link interwiki-cdo
display: none;

value:
interlanguage-link interwiki-mn
display: none;

value:
https://nl.wikipedia.org/wiki/Bohrium
Bohrium – Dutch
nl
nl
interlanguage-link-target

value:
interlanguage-link interwiki-nl
display: none;

value: बोरियम – Nepali

value:
interlanguage-link interwiki-ne
display: none;

value: बोरियम – Newari

value:
interlanguage-link interwiki-new
display: none;

value:
interlanguage-link interwiki-ja
display: none;

value:
https://no.wikipedia.org/wiki/Bohrium
Bohrium – Norwegian
no
no
interlanguage-link-target

value:
interlanguage-link interwiki-no
display: none;

value:
https://nn.wikipedia.org/wiki/Bohrium
Bohrium – Norwegian Nynorsk
nn
nn
interlanguage-link-target

value:
interlanguage-link interwiki-nn
display: none;

value: ବୋଃରିଅମ – Odia

value:
interlanguage-link interwiki-or
display: none;

value:
interlanguage-link interwiki-uz
display: none;

value: बोरियम – Pali

value:
interlanguage-link interwiki-pi
display: none;

value:
interlanguage-link interwiki-pnb
display: none;

value:
interlanguage-link interwiki-pl
display: none;

value:
https://ro.wikipedia.org/wiki/Bohriu
Bohriu – Romanian
ro
ro
interlanguage-link-target

value:
interlanguage-link interwiki-ro
display: none;

value:
https://qu.wikipedia.org/wiki/Bohriyu
Bohriyu – Quechua
qu
qu
interlanguage-link-target

value:
interlanguage-link interwiki-qu
display: none;

value:
interlanguage-link interwiki-sa
display: none;

value:
https://sco.wikipedia.org/wiki/Bohrium
Bohrium – Scots
sco
sco
interlanguage-link-target

value:
interlanguage-link interwiki-sco
display: none;

value:
https://stq.wikipedia.org/wiki/Bohrium
Bohrium – Saterland Frisian
stq
stq
interlanguage-link-target

value:
interlanguage-link interwiki-stq
display: none;

value:
https://sq.wikipedia.org/wiki/Bohriumi
Bohriumi – Albanian
sq
sq
interlanguage-link-target

value:
interlanguage-link interwiki-sq
display: none;

value:
https://scn.wikipedia.org/wiki/Bohriu
Bohriu – Sicilian
scn
scn
interlanguage-link-target

value:
interlanguage-link interwiki-scn
display: none;

value:
interlanguage-link interwiki-simple
display: none;

value:
https://sk.wikipedia.org/wiki/Bohrium
Bohrium – Slovak
sk
sk
interlanguage-link-target

value:
interlanguage-link interwiki-sk
display: none;

value:
https://sl.wikipedia.org/wiki/Borij
Borij – Slovenian
sl
sl
interlanguage-link-target

value:
interlanguage-link interwiki-sl
display: none;

value:
https://so.wikipedia.org/wiki/Bohriyaam
Bohriyaam – Somali
so
so
interlanguage-link-target

value:
interlanguage-link interwiki-so
display: none;

value:
interlanguage-link interwiki-ckb
display: none;

value: Боријум – Serbian

value:
interlanguage-link interwiki-sr
display: none;

value:
https://sh.wikipedia.org/wiki/Borijum
Borijum – Serbo-Croatian
sh
sh
interlanguage-link-target

value:
interlanguage-link interwiki-sh
display: none;

value:
https://fi.wikipedia.org/wiki/Bohrium
Bohrium – Finnish
fi
fi
interlanguage-link-target

value:
interlanguage-link interwiki-fi
display: none;

value:
https://sv.wikipedia.org/wiki/Bohrium
Bohrium – Swedish
sv
sv
interlanguage-link-target

value:
interlanguage-link interwiki-sv
display: none;

value:
https://tl.wikipedia.org/wiki/Boryo
Boryo – Tagalog
tl
tl
interlanguage-link-target

value:
interlanguage-link interwiki-tl
display: none;

value: போரியம் – Tamil

value:
interlanguage-link interwiki-ta
display: none;

value: Борий – Tatar

value:
interlanguage-link interwiki-tt
display: none;

value: బోరియం – Telugu

value:
interlanguage-link interwiki-te
display: none;

value: โบห์เรียม – Thai

value:
interlanguage-link interwiki-th
display: none;

value:
https://tr.wikipedia.org/wiki/Bohriyum
Bohriyum – Turkish
tr
tr
interlanguage-link-target

value:
interlanguage-link interwiki-tr
display: none;

value:
interlanguage-link interwiki-uk
display: none;

value: بورئیم – Urdu

value: بوھرىي – Uyghur

value:
interlanguage-link interwiki-ug
display: none;

value:
https://vep.wikipedia.org/wiki/Borii
Borii – Veps
vep
vep
interlanguage-link-target

value:
interlanguage-link interwiki-vep
display: none;

value:
https://vi.wikipedia.org/wiki/Bohri
Bohri – Vietnamese
vi
vi
interlanguage-link-target

value:
interlanguage-link interwiki-vi
display: none;

value:
https://war.wikipedia.org/wiki/Bohryo
Bohryo – Waray
war
war
interlanguage-link-target

value:
interlanguage-link interwiki-war
display: none;

value:
https://yo.wikipedia.org/wiki/Bohriomu
Bohriomu – Yoruba
yo
yo
interlanguage-link-target

value:
interlanguage-link interwiki-yo
display: none;

value:
interlanguage-link interwiki-zh-yue
display: none;

value:
interlanguage-link interwiki-kbp
display: none;

value: All languages (initial selection from common choices by you and others)

value: mediawiki ltr sitedir-ltr mw-hide-empty-elt ns-0 ns-subject page-Bohrium rootpage-Bohrium skin-vector action-view


text:
Number Eight (Battlestar Galactica)
From Wikipedia, the free encyclopedia
Jump to: navigation, search
This article is about the characters from the reimagining of Battlestar Galactica; for the original characters, see Lieutenant Boomer and Lieutenant Athena.
[hide]This article has multiple issues. Please help improve it or discuss these issues on the talk page. (Learn how and when to remove these template messages)
This article's plot summary may be too long or excessively detailed. Please help improve it by removing unnecessary details and making it more concise. (December 2016) (Learn how and when to remove this template message)
This article describes a work or element of fiction in a primarily in-universe style. Please help rewrite it to explain the fiction more clearly and provide non-fictional perspective. (March 2011) (Learn how and when to remove this template message)
(Learn how and when to remove this template message)
It has been suggested that this article be merged into List of Battlestar Galactica characters. (Discuss) Proposed since December 2016.
Number Eight
Sharon "Boomer" Valerii
Sharon "Athena" Agathon
Battlestar Galactica character
First appearance
Miniseries
Last appearance
Battlestar Galactica: The Plan
Portrayed by
Grace Park
Information
Aliases
Boomer, Athena
Species
Humanoid Cylon
Gender
Female
Title
Lieutenant Junior Grade
Colony
Cylon Homeworld, claims to be from Aerelon's colony Troy
Affiliation
Colonial Fleet/Cylons
Number Eight is a female humanoid Cylon model on the television series Battlestar Galactica, a reimagining of the classic show of the same name. She is portrayed by Grace Park. Two prominent Number Eight copies serving as Galactica pilots are Sharon Valerii and Sharon Agathon, using the call signs "Boomer" and "Athena", respectively.
Contents
[hide]
1 Notable copies
1.1 Sharon "Boomer" Valerii
1.1.1 Life on Caprica and Galactica
1.1.2 Death and resurrection
1.1.3 Relation to Hera Agathon and second death
1.1.4 Second resurrection and relation with John Cavil
1.1.5 Relation to Ellen Tigh and return to Galactica
1.1.6 Kidnapping of Hera Agathon
1.1.7 Final death
1.1.8 Dual personality mode
1.2 Sharon "Athena" Agathon
1.2.1 Cylon-occupied Caprica
1.2.2 Return to the Colonial Fleet
1.2.3 Pregnancy and birth
1.2.4 Post-occupation of New Caprica
1.2.5 Relation with daughter Hera
1.3 Other versions
2 Typical Eight traits
3 Call sign origins
4 See also
5 References
6 External links
Notable copies[edit]
Cylon models Six and Eight are the most common in the series. Many Number Eight copies have been seen in various roles, including leadership positions; two are featured as central characters — Boomer and Athena.
Sharon "Boomer" Valerii[edit]
This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. (June 2008) (Learn how and when to remove this template message)
Life on Caprica and Galactica[edit]
Lieutenant Junior Grade Sharon "Boomer" Valerii is a Cylon sleeper agent programmed to believe she is human. For example, she has been implanted with false memories of being raised on Troy by her parents Katherine and Abraham Valerii, who supposedly died in an accident killing all the members on the mining colony. Whether or not Katherine and Abraham actually existed is unknown. In the time before the mini-series, Boomer and Galen Tyrol are romantically involved, although their relationship is against military protocol (she is an officer, he's enlisted). Due to her programming, she performs a number of sabotage actions (including bombing the Galactica's water tanks) but has no conscious memory of these actions; although,in the special entitled The Plan, we learn that she had a Cylon handler, Brother Cavil, who activated her missions & chastised her for allowing human weakness (inability to hold her breath long enough) to prevent her from planting all the explosives in the water tanks; & later, for not shooting Adama in the head. Tyrol trusts her and hides evidence implicating her in the water bombing but later suspicious events cause him to break off his relationship with her. In time, she begins to suspect something may be wrong with her. She asks Gaius Baltar to administer a blood test to determine whether she is a Cylon. Although his test demonstrates she is in fact a Cylon, he decides not to inform her or anyone else, out of fear she will kill him. She is relieved for a while but gradually her suspicions return and she attempts suicide. Her programming, however, prevents her from killing herself.
In the episode "Kobol's Last Gleaming", Commander Adama sends Boomer on a mission to destroy the basestar orbiting Kobol. On the basestar, she encounters numerous other Number Eight copies identical to herself but she refuses to accept she is a Cylon and personally sets the bomb. After returning to Galactica, her hidden programming takes over and she shoots Commander Adama twice in the chest, putting him in a coma. She is put in the brig and violently interrogated by Colonel Tigh, who has taken command of Galactica during Adama's incapacity. Tyrol is also suspected of being a Cylon because of his relationship with her, and is thrown in her cell. He tells her not to speak to him or even touch him; he insists she is a machine and nothing like him.
Death and resurrection[edit]
Gaius Baltar forces Boomer to tell him how many other Cylons are still hidden in the fleet by injecting Tyrol with a substance that stops his heart and refusing to administer the antidote. Sharon finally tells Gaius there are eight Cylons in the fleet. She is shot and killed by Cally, who blames her for Tyrol's imprisonment; Cally herself is in love with Tyrol as is made clear in later episodes. Sharon dies in Tyrol's arms, telling him she loves him.[1]
In the episode "Sacrifice" terrorist Sesha Abinell and her group take hostages about the Cloud 9, demanding that the "Athena" Sharon in Galactica's brig be turned over to her to be executed. The now Admiral Adama tells Abinell that he will give her Sharon, but will execute the Cylon before hand. He sends over "Boomer" Sharon's body as a ruse to give his Marines an opportunity to take out the terrorists. Upon receiving the body, Abinell promptly shoots it twice in the head. Thereafter however, she discovers the ruse when upon seeing the autopsy scars on the body. The rescue is successful however, at the cost of Billy Keikeya's life. Adama and Roslin later view Boomer's and Billy's bodies in the morgue, with Roslin concluding that the ruse "wasn't worth it".
In the episode "Downloaded", it is revealed Boomer's consciousness has been downloaded into a new body. She tries to live on Caprica like in her old life as a human. She resists being identified with the Cylon cause, although they view her and Caprica Six as heroes. Over time, she begins to open up to Caprica Six, who like her has been transformed by their love for a human. They decide to try to persuade the Cylons some of their actions against mankind are wrong. Number Three threatens to have them "boxed", that is, placing their consciousness into "cold storage".
Boomer is among the Cylons occupying New Caprica. She has accepted herself as a Cylon and is fully integrated back into their society. She functions as a member of the Cylon governing council that controls the puppet human government under President Gaius Baltar. Her desire remains to show humans and Cylons can co-exist; however, relations between the two groups turn increasingly hostile. Boomer visits Cally who has been imprisoned to tell her she is doing everything that she can to free her, and attempts to make peace. She indicates she has accepted Tyrol moving on and starting a family with Cally. However, Cally remains distrustful and angrily rebuffs her.
Relation to Hera Agathon and second death[edit]
In the episode "The Eye of Jupiter", Boomer is seen attempting to care for Athena's hybrid child Hera, who is mysteriously ill. She is frustrated by the child's deteriorating health and their inability to bond. She later joins D'Anna and Cavil when they go to meet Adama and Roslin on Galactica. Athena identifies Boomer as the Cylon who shot Adama, and Tigh informs her that her visiting privileges have been revoked. Boomer tells Athena that Hera is still alive and living among the Cylons, but has fallen ill.
Athena arrives on the Cylon Base Ship and is reunited with Hera who immediately stops crying. Caprica Six is amazed how Hera responds to being back with her "real mother", however Boomer is upset. Athena determines Hera would best be treated by a human doctor. Boomer accuses her of having planned to take Hera back to Galactica from the start. Boomer says the failure of New Caprica has taught her humans and Cylons cannot co-exist and should go their separate ways. Throughout this meeting, Boomer becomes increasingly distressed and emotionally unstable. She suggests Cavil may be right that the Cylons are not supposed to have children, and ultimately threatens to snap Hera's neck, but her own neck is snapped by Caprica Six for endangering the future of the Cylon race.
Second resurrection and relation with John Cavil[edit]
Shortly thereafter, Boomer again resurrects. She has begun to develop a relationship with John Cavil, a Cylon who embraces his machine nature and sees human traits as a weakness. Cavil insists the Raiders should undergo a procedure to remove or at least reduce their sentience, and he enlists Boomer's aid when the Cylons become deadlocked over the matter. While her fellow Eights vote as a group against the procedure, Boomer decides to vote yes in order to make the Raiders effective fighters once again. In so doing, she becomes the first Cylon to ever vote against her own model (meaning that in a six-vote bloc, she casts an unheard-of seventh vote).
After Cavil is gunned down by Natalie's forces, he resurrects and begins to plot the permanent death of the opposing Cylons, including Boomer's fellow Eights, by killing them out of range of a Resurrection ship. Boomer has doubts about killing her "own sisters", and when Cavil reassures her the souls of the others will be looked after by God, she asks, "what about our souls?" Cavil assures her, "We're machines, machines don't have souls."
Relation to Ellen Tigh and return to Galactica[edit]
Boomer is the only other Cylon whom Cavil has told that he is keeping their creator, Ellen Tigh, prisoner. He teaches Boomer to let go of her human traits to become a better machine. Cavil describes Boomer as "self-destructive, hyper-emotional, torn apart by conflicting emotions." Boomer asks Ellen if she feels any regret for limiting the Cylon by making them as close to humans as possible. Ellen says she gave them free will, the ability to think creatively, to reach out to others with compassion and love. Boomer asks angrily who she should love.
When the Resurrection Hub is destroyed, Cavil and Boomer demand Ellen help them redevelop the technology. Cavil threatens to cut open Ellen's brain in order to access her knowledge, but Boomer spirits her away in a Raptor, telling Ellen she is forgiving her. When they arrive on Galactica, Tyrol identifies her as Boomer and she is immediately taken to the brig.
"Did Boomer really love the Chief? That’s an interesting question and one I don’t have a neat answer to. Boomer is deeply conflicted. I think the process of having false memories planted in her, getting switched “on” as a Cylon, shooting Adama, getting shot by Cally, and her experiences on New Caprica have left her severely disturbed. She was determined to go through with her mission, but in the process of seducing Tyrol she reawakened feelings of love that she thought were dead. I think she experienced real misgivings just before she got on that Raptor, but felt she had gone too far to back down. Wrapped up in that is her perverse envy of Athena, who obtained everything Boomer once wanted, and this festered into a sick desire to strike out at Athena. It’s difficult to say someone who did that loves the Chief, and yet in her damaged way, I think she did and still does love him."
Writer David Weddle discussing the character of Boomer.[2]
The Cylon rebels decide to put her on trial for treason, with capital punishment possible due to the loss of resurrection. When Tyrol goes to see her in the brig, she professes her continued love for him. She shares with him projections of their dream home on Picon, in which they are married and have a daughter. Convinced she will be found guilty and executed, Tyrol helps her escape.
Kidnapping of Hera Agathon[edit]
She beats Sharon "Athena" Agathon and hides her, bound and gagged, in a bathroom stall. She puts on a pilot uniform and starts cleaning up, however, Karl Agathon finds her before she can leave. Thinking she is his wife Athena who is set to go on a six-day mission, he starts seducing her. Boomer tries to leave but then changes her mind and has sex with him. She then picks up Hera from the daycare center and quickly drugs her with a drink. Boomer hides Hera in a provisions supply case to be loaded onto a Raptor. She assures Tyrol she was not lying about what she told him.
"Boomer is much more tragic and conflicted, and in a lot of denial. Athena came from a very different starting point, and everything was a lie, but she fought and made it through the trenches. She's a story not of privilege, but about creating whoever you want to be. That's the American story. Boomer could have been a number of things too, but she made a lot of poor decisions."
Actress Grace Park discussing the characters of Boomer and Athena.[3]
Adama has been alerted Boomer is impersonating Athena and tries to stall her. However, Boomer figures out she has been discovered, and starts powering up her Raptor. Adama warns her he will shoot her down but Boomer tells him she has Hera. Adama starts closing the flight pod but she manages to fly out, clipping her port wing. She then quickly jumps away, close enough to damage Galactica from the resulting spatial disruption. Ellen later concludes everything Boomer did, including helping her escape, was planned in order to kidnap Hera and bring her to Cavil.
Final death[edit]
Boomer keeps jumping her stolen Raptor headed for The Colony. Hera cries for her mother and Boomer goes to sedate her but cannot bring herself to do it. Instead she tells Hera about her projection of her and Tyrol's home on Picon and Hera surprises her by revealing she can project too and joining her in the projection. Boomer shows Hera the bedroom she dreamed of for her daughter and bonds with the girl. She ultimately takes her to Cavil but has doubts when Hera calls out for her. During the Colonials' assault on The Colony to rescue Hera, Boomer is shocked that Simon continues examining Hera. When he refuses to stop, Boomer kills him and takes Hera to the rescue party and returns her to her parents. Athena does not wish to forgive Boomer, who says she knew it would likely be her last act. She says she owed something to the Admiral, who had not ejected her from the Colonial Fleet when she kept failing to make proper landings. Boomer is then shot and killed by Athena. With the loss of Resurrection, her death is final.
Dual personality mode[edit]
The movie Battlestar Galactica: The Plan shows that while she was a sleeper agent aboard Galactica, Boomer had a submerged personality who was aware of her true nature and had a romantic connection to the Brother Cavil aboard the ship, though she was extremely conflicted about her actions. Cavil used an elephant figurine as a trigger to switch Boomer from one mode to the other. This Boomer revealed that she had feelings for Tyrol too and cared deeply for Admiral Adama and stated that she preferred her human personality being in control, that she liked herself better when her main self was in control. This personality blew up the water tank (and came up with the plan to do so) and shot Adama, but she said to do so, she had to mentally make herself a Centurion which deeply disturbed her. After hearing this, Cavil abandoned Boomer to her fate in the brig and this personality never seemed to emerge again. The prostitute Six (and even Tyrol) believes that when she shot Adama, she purposefully didn't kill him.
Sharon "Athena" Agathon[edit]
Cylon-occupied Caprica[edit]
Another copy of Sharon, who is fully aware of her true nature, also appears in the series. She first appears when she joins then-Lieutenant Karl 'Helo' Agathon after he is stranded on the Cylon-occupied planet Caprica. She pretends to be the "original" Sharon who had returned to help him, when in fact she is working with the other Cylons on an experiment to have him fall in love with her. While her intentions at the beginning of the experiment are strictly part of the Cylon plan, she eventually falls genuinely in love with Helo, and tries to help him escape from the other Cylons. Helo discovers her true identity when he sees another Number Eight copy on Caprica (who attempts to kill him but is shot by Sharon), but Sharon eventually convinces him that she loves him, and also reveals that she is pregnant with his child. This pregnancy is the first known successful attempt at a humanoid-Cylon/Human Hybrid, and as a result is of great importance to the Cylons.
While on Caprica, Sharon and Helo encounter Kara 'Starbuck' Thrace, who realises that Sharon is a Cylon "copy" and attempts to shoot her, but is stopped by Helo. Sharon flees in Starbuck's captured Cylon Raider, casting doubt on her intentions. She returns later to aid Helo and a human resistance movement rescue Starbuck from a Cylon facility. Though only Helo trusts her, the group allows Sharon to accompany them as they rejoin President Laura Roslin's portion of the Colonial fleet, separated from Galactica.
Return to the Colonial Fleet[edit]
Sharon's life is again threatened upon her arrival in the Colonial fleet after William Adama's attempted assassination and Boomer's death. First, Lee 'Apollo' Adama attempts to shoot her until Helo intervenes, then Roslin orders her thrown out an airlock, until Sharon uses her knowledge of the Tomb of Athena on Kobol as leverage. She demonstrates her loyalty several times in defending the group from Cylon ambushes during the trip to the tomb, even though she is chained and not entirely trusted.
Sharon's reunion with other Galactica personnel on Kobol is also tense, as then-Commander Adama initially attempts to strangle her. Her relationship with Tyrol is complicated by the events involving Boomer as well as by her romantic involvement with Helo. Despite Adama's animosity, she saves his life by exposing a plot to kill him by one of Tom Zarek's followers. She tells them, "I'm Sharon, but I'm a different Sharon. I know who I am. I don't have hidden protocols or programs lying in wait to be activated. I make my own choices, I make my own decisions, and I need you to know this is my choice," as she hands him her gun. Still, she is imprisoned upon returning to Galactica and treated as an enemy by all but Helo and Tyrol.
When the Galactica is threatened by a Cylon computer virus, Sharon again demonstrates her loyalty by using her Cylon capabilities to instead turn the virus against the large approaching Cylon raider attack force, allowing the Colonial pilots to completely destroy the enemy. Although she performs this action, she seems conflicted and pained by its repercussions (mainly the subsequent slaughter of raiders). This event causes Roslin and Adama to re-evaluate their attitude towards her, and earns her significant trust. She makes several other valuable contributions to the human cause, offering intelligence and advice on various Cylon situations.
When the Battlestar Pegasus is reunited with the Colonial fleet, its commander, Rear Admiral Helena Cain, learns of Sharon's presence. Sharon is turned over to Pegasus's "Cylon Interrogator", Lt. Thorne, who beats Sharon and attempts to rape her, but is killed when Helo and Tyrol intervene.
Pregnancy and birth[edit]
Sharon's unborn hybrid child is threatened when Roslin orders the pregnancy terminated, outraging Sharon and Helo. Roslin later relents when blood from the fetus is found to be able to cure her terminal cancer. The pregnancy is allowed to continue, and in "Downloaded", Sharon gives birth to her child prematurely, via an emergency caesarean section. The daughter is named Hera. As the baby is deemed a risk to the Fleet if raised by her Cylon mother, Hera's death is faked by Dr. Cottle. The baby is given to a human mother to raise, unbeknownst to either Sharon or Helo. Told that Hera died from breathing complications, Sharon assumes that Hera was killed by the Galactica crew and attacks Dr. Cottle and turns on Helo. She later helps navigate a mission to rescue survivors on Caprica. Her loyalty is again called into question when she chooses not to inform the Colonials that one of the survivors is a Cylon.
Post-occupation of New Caprica[edit]
In Season 3's "Occupation", it is revealed that during the year-long gap between the events of seasons 2 and 3, Sharon and Helo were married, and Sharon took Helo's surname of Agathon. With the Galactica in need of pilots after the return of the Cylons, and having earned the full trust of Admiral Adama, Sharon is sworn in as an officer in the Colonial Fleet, at Boomer's rank of Lieutenant JG. She is sent back to New Caprica as the liaison between the Galactica fleet and the resistance effort on the ground as a precursor to an attempt to free the subjugated humans from the occupying Cylons. Adama explained that she was the ideal agent, since Centurions cannot tell her from any of the other Eights. Sharon infiltrates the Cylon Base and is able to steal the keys for the civilian ships, thus making Adama's escape plan possible. When leaving with the keys, she encounters D'Anna Biers, a Number Three, who informs her that her child Hera is still alive. Sharon refuses to believe that Admiral Adama would have lied to her (he in fact had not been told the child was still alive), and shoots D'Anna in the knees to keep her from warning the other Cylons.
After the successful rescue of the colonists, Sharon gains a measure of acceptance among the Galactica's pilots. When Racetrack refers to her by the old call sign 'Boomer,' she replies that 'Boomer' was somebody else. The other pilots in the rec room offer suggestions for a new call-sign. Many of them affectionately tease her for being a Cylon and suggesting names like "Tin Can" and "Titanium". "Hot Dog" suggests Athena, the goddess of wisdom and war, and Sharon proudly accepts it.
Athena displays the ability to identify individual Number Eight copies, identifying Boomer (who shot Admiral Adama at the end of Season 1) when she arrives aboard Galactica to negotiate with Admiral Adama. When Colonel Tigh bars Boomer from the meeting, she repeats Number Three's message that Hera is still alive, but ailing, aboard a basestar. Adama confirms this information in a tense conversation with President Roslin. Both Athena and Helo express feelings of outrage that their child was stolen from them. Athena demands at the end of Season 3 episode 11 that she be able to see her daughter.
As there is no way that Adama would let her visit the Base Ship, Athena asks Helo to shoot her so that she can die and be downloaded onto the Cylon resurrection ship. Caprica Six brings Athena to the room on the Base Ship where Boomer is caring for the child. Athena insists that Hera's illness could be cured by the human doctors on Galactica, a possibility that neither Caprica nor Boomer wishes to consider. Athena and Boomer have a heated discussion regarding the fate of the child. Boomer becomes emotionally unstable and suggests that the experiment be abandoned and Hera killed. Before Athena can intervene, Caprica promptly kills Boomer for considering the death of the child. Before their actions can be discovered, Caprica whisks Athena and Hera to a Raptor, and the trio escape to Galactica.
Athena's abilities as a pilot are recognized and she is given the most important missions for Raptor pilots, including the mission through the star cluster to find a food source after the fleet's food supply is contaminated.
Relation with daughter Hera[edit]
Sharon discovers that she, Hera, President Roslin, and Caprica Six are all sharing the same recurring vision of an Opera House but are unaware of what it means.
Athena serves aboard the Demetrius to help Kara Thrace try to find Earth.
Athena shoots and kills Natalie because she sees the Number 6 as a threat to Hera due to the dreams of the Opera House that she has been having. She is placed in the brig by Adama for her actions but is later released, likely because President Roslin and Caprica Six confirmed that they were indeed sharing visions.
Athena, along with Helo and Hera, is part of a group of prisoners captured in the mutiny that are placed in the brig. When rescued, she asks Caprica Six to take Hera and a wounded Helo to safety while she helps Lee Adama and Saul Tigh rescue Bill Adama.
Late in season 4, when Boomer is freed by Tyrol after bringing Ellen Tigh back to the Galactica from the captivity of John Cavil and subsequently being imprisoned by Adama, she seeks out Athena, knocks her unconscious, and steals her uniform. Afterward, Boomer has sexual intercourse with Karl Agathon, who believes she is actually his wife. Athena herself, gagged and barely conscious, watches the scene from a lavatory toilet stall that Boomer put her in, unable to act or react.
In the series finale, after watching the preparations for operation committed upon Hera by a "Simon" (a Four), Boomer kills him. Boomer brings Hera back to her parents Helo and Athena, knowing she was almost certainly going to be killed. After giving them final assistance, she is shot to death by Athena. After arriving at the New Earth, Helo and Athena joyfully joke with each other as how the two will teach Hera all she needs to know, together.
Hera becomes "Mitochondrial Eve", meaning that all modern-day humans are descended from Athena.
Other versions[edit]
A copy joins a group of Twos, Fives, and Sixes at Ragnar Anchorage after Galactica and the fleet depart having stranded "Aaron Doral." This copy declares that the humans will be hunted down, and a Six replies, "By your command."
A copy wearing a white coat at the Spaceport at Delphi, whom Athena kills before the other Eight can shoot Helo.
Multiple naked copies aboard the basestar above Kobol, which Boomer was sent to destroy and upon which she learns her identity as a Cylon.
A copy who sits in a movie theatre (with other Cylon models) and watches the footage sent from the Fleet by D'Anna Biers (it can be assumed that it is the same one that Athena shot because she wears the same coat as the above-mentioned copy).
Copies who act as "nurses" or "midwives," aiding the respective resurrections of Caprica Six and Boomer.
Several copies on Cylon-occupied Caprica going through daily life in the episode "Downloaded", wearing a variety of outfits.
Copies who are killed when Samuel Anders and Galen Tyrol detonate a bomb near a Cylon Heavy Raider.
A copy who sits next to Boomer during a meeting on Colonial One (during the New Caprican occupation), when the suicide bombings are discussed.
Multiple copies aboard the basestar that Caprica Six and Baltar inhabit.
Multiple copies dying aboard a diseased basestar.
A copy, dying from a disease aboard a basestar, who is taken captive by Galactica. Later, she and the rest of the Cylon prisoners are killed by Helo in an attempt to prevent genocide against the Cylons. This copy, despite calling Sharon a traitor, showed typical Eight concern for her and warned her to stay away due to the disease.
Multiple copies who approach Athena on the rebel basestar, asking her to lead a rebellion against the Sixes. Athena expresses disgust with their typical Eight fickleness.
A copy shot and killed by a Centurion while attempting to unplug the Hybrid. She is comforted by Anders in her final moments after Athena refuses to do so.
The Eight copy who had downloaded Athena's memories and helped Helo bring back D'Anna.
The Eights in flight uniforms during the briefing for the attack on the Resurrection Hub.
The multitude of unactivated Eights Helo sees aboard the soon to be destroyed Resurrection Hub.
Two Eights that were on the Raptor with four humans including Felix Gaeta as seen in The Face of the Enemy webisodes. One had a cynical air and was dressed in a black Cylon flight suit, the other was dressed in civilian garb and had an air of innocence. This latter Eight is the one who pretended to collaborate with Felix Gaeta and had an affair with him on New Caprica. The existence of their interactions on New Caprica was also revealed in The Face of the Enemy webisodes. When the Raptor effectively became lost in space due to a malfunction, the "Innocent" Eight murdered the "cynical" Eight and three humans to in order to conserve the air supply for herself and Gaeta. She then revealed to Gaeta that of the people Gaeta had given her a list of to save, most were really murdered by the Cylons just for being important enough to be listed. She intended to spare Gaeta because she loved him, but Gaeta killed her in revenge for the murders she committed on New Caprica and in the Raptor.
Multiple Eights are seen helping repair Galactica in "Someone to Watch Over Me". One of them is knocked unconscious by Galen Tyrol and substituted for Boomer in the brig. Another is mortally injured in "Islanded in a Stream of Stars" during a major hull breach aboard Galactica; while in sick bay, she asks for Saul Tigh to visit her, and thanks him for the opportunity to meet her "father" (referencing his status as one of the Final Five Cylons) as she dies (with her last words being "too much confusion," suggesting that she was also hearing "All Along the Watchtower," the song that had activated the Final Five). Another was prominent at the bedside of Samuel Anders in "Deadlock", "Someone to Watch Over Me" and "Islanded in a Stream of Stars" making some key suggestions like connecting Anders to the Galactica's power systems and the Cylon data stream to attempt to jump start his brain. It failed but that Eight's action led him to eventually becoming the Galactica's hybrid and was instrumental in rescuing Hera.
Typical Eight traits[edit]
Unlike most other Cylon models, the Eights typically show a great deal of concern and affection towards others. The Eights tend to be the most naive of the models and are often emotionally immature. While capable of convincing manipulation and deception, they are also vulnerable to forming emotional attachments. The Eights also have a propensity for fickleness, often changing loyalties to better suit their own needs and desires, with the notable exception of Sharon "Athena" Agathon, whose loyalty to Commander Adama, Helo, and her daughter are unwavering and uncompromising. Moore has also commented that the Eights are more likely to "shoot things they don't like". Early in the series, the Eights were implied to be the most militaristic of the models and the most likely to have combat training; overall, an Eight is at least as good at combat as a Six.
Some of the Cylon models appear to share all of their memories, making them seem interchangeable with all others of their model type. That is not the case with the Eights (or Sixes). In the BSG episode "The Hub," a deleted scene involving three characters - Helo, an Eight who had accessed Athena's most recent downloaded memories, and the just-reactivated Three/D'Anna - would have clarified that the model Eight Cylons don't normally have access to each other's memories. This would give them a stronger capacity to form distinct identities. On that note, a scene in the extended version of "Islanded in a Stream of Stars" involving Athena and Galen Tyrol also clarifies that Athena still had Sharon "Boomer" Valerii's memories from before the war, because the Cylons had provided them to her in order to help her impersonate Boomer when she and Helo were "running from the Cylons" back on Caprica. However, Athena did not have any newer memories from Boomer, even though Boomer had died and downloaded into a new body at least twice since then (see "Downloaded" and "Rapture").
It was stated by Caprica showrunner Kevin Murphy that had the prequel series Caprica continued, it would be revealed that the Eights' default personality was modeled after that of Tamara Adama (while the Sixes were modeled after Zoe Graystone).[4]
Call sign origins[edit]
The call signs for both Sharon characters derive from the names of characters in the original Battlestar Galactica series. Boomer was the name (not the call sign) of a Viper pilot character played by Herbert Jefferson, Jr. Sharon Agathon's call sign, Athena, in the original series was the name of Commander Adama's daughter Lieutenant Athena. Athena was the sister of Captain Apollo, with the duties of bridge officer, shuttle pilot, and occasional Viper pilot.
See also[edit]
Woman warrior
List of women warriors in folklore
References[edit]
Jump up ^ "Resistance". Battlestar Galactica (2004 TV series).
Jump up ^ Maureen Ryan (2009-02-28). "Play it again, Starbuck: Talking to Weddle and Thompson about 'Someone to Watch Over Me'". Chicago Tribune. Archived from the original on 2010-04-03. Retrieved 2009-02-28.
Jump up ^ Anthony Breznican (2009-03-12). "Internal battles are raging in 'Battlestar'". USA Today. Archived from the original on 2012-10-28. Retrieved 2009-03-13.
Jump up ^ http://www.capricatimes.com/the-caprica-times-exclusive-interview-kevin-murphy
External links[edit]
Number Eight at Battlestar Wiki
Number Eight at Syfy
[show]
v
t
e
Characters on Battlestar Galactica
Original
Commander Adama
Captain Apollo
Lieutenant Starbuck
Lieutenant Boomer
Lieutenant Athena
Count Baltar
Count Iblis
Commander Cain
Serina
Boxey
Cylons
Hasaris
Seraphs
Reimagined
Lee "Apollo" Adama
William "Husker" Adama
Richard Adar
Hera Agathon
Karl "Helo" Agathon
Samuel "Longshot" Anders
Gaius Baltar
Helena Cain
Dr. Sherman Cottle
Anastasia "Dee" Dualla
Margaret "Racetrack" Edmondson
Elosha
Tory Foster
Felix Gaeta
Louanne "Kat" Katraine
Aaron Kelly
Billy Keikeya
Romo Lampkin
Alex "Crashdown" Quartararo
Laura Roslin
Kara "Starbuck" Thrace
Ellen Tigh
Saul Tigh
Cally Tyrol
Galen Tyrol
Thomas Zarek
#1 - John Cavil
#2 - Leoben Conoy
#3 - D'Anna Biers
#4 - Simon O'Neill
#5 - Aaron Doral
#6
#7 - Daniel
#8 - Sharon Valerii
Minor characters
Caprica
Zoe Graystone
[show]
v
t
e
Battlestar Galactica
Original
series
"Saga of a Star World" (pilot)
Galactica 1980 (TV series)
Episodes
The Second Coming
Comics
Characters
Captain Apollo
Lieutenant Starbuck
Commander Adama
Lieutenant Boomer
Count Baltar
Cylons
Reimagined
series
Episodes
miniseries
season 1
season 2
season 3
season 4
TV movies
Razor
The Plan
Webisodes
The Resistance
Razor Flashbacks
The Face of the Enemy
Blood & Chrome
Music
Awards
Comics
Characters
William Adama
Laura Roslin
Kara "Starbuck" Thrace
Lee "Apollo" Adama
Gaius Baltar
Number Six
Sharon/Number Eight
Cylons
Cylon
Caprica
Episodes
Music
Characters
Ships
Battlestar Galactica
Cylon Basestar
Other ships (2004 series)
Theme park
attractions
Battlestar Galactica: Human vs. Cylon
Battle of Galactica
Games
Video games
Battlestar Galactica Online
Beyond the Red Line
Collectible Card Game
Battlestar Galactica: The Board Game
Retrieved from "https://en.wikipedia.org/w/index.php?title=Number_Eight_(Battlestar_Galactica)&oldid=817060859"
Categories:
Cylons
Fictional aviators
Fictional cyborgs
Fictional gynoids
Fictional clones
Fictional women soldiers and warriors
Fictional secret agents and spies
Fictional characters introduced in 2003
Hidden categories:
Wikipedia articles with plot summary needing attention from December 2016
All Wikipedia articles with plot summary needing attention
Articles that need to differentiate between fact and fiction from March 2011
All articles that need to differentiate between fact and fiction
Articles with multiple maintenance issues
Articles to be merged from December 2016
All articles to be merged
Pages using deprecated image syntax
Articles using Infobox character with multiple unlabeled fields
Articles needing additional references from June 2008
All articles needing additional references
Navigation menu
Personal tools
Not logged in
Talk
Contributions
Create account
Log in
Namespaces
Article
Talk
Variants
Views
Read
Edit
View history
More
Search
Navigation
Main page
Contents
Featured content
Current events
Random article
Donate to Wikipedia
Wikipedia store
Interaction
Help
About Wikipedia
Community portal
Recent changes
Contact page
Tools
What links here
Related changes
Upload file
Special pages
Permanent link
Page information
Wikidata item
Cite this page
Print/export
Create a book
Download as PDF
Printable version
Languages
Français
Nederlands
日本語
Српски / srpski
Srpskohrvatski / српскохрватски
Edit links
This page was last edited on 25 December 2017, at 21:10.
Text is available under the Creative Commons Attribution-ShareAlike License; additional terms may apply. By using this site, you agree to the Terms of Use and Privacy Policy. Wikipedia® is a registered trademark of the Wikimedia Foundation, Inc., a non-profit organization.
Privacy policy
About Wikipedia
Disclaimers
Contact Wikipedia
Developers
Cookie statement
Mobile view
Enable previews

tag: div

attr: id class

value: mw-page-base noprint

key: html

type: local

value: mw-head-base noprint

tag: a

tag: i

attr: id class lang

value: firstHeading firstHeading en

value: siteSub noprint

value: jump-to-nav mw-jump

attr: href class title

attr: href title

attr: role class

value:
note
hatnote navigation-not-searchable

tag: img

attr: alt src width height srcset data-file-width data-file-height

tag: td

tag: span

attr: class role tabindex

value: mw-collapsible-toggle button 0

tag: b

attr: class href

value: Talk:Number Eight (Battlestar Galactica)

value: plainlinks metadata ambox ambox-style ambox-Plot

value: Wikipedia:Manual of Style/Writing about fiction

value: plainlinks metadata ambox ambox-content ambox-in-universe

value:
mw-collapsible
width:95%; margin: 0.2em 0;

value: plainlinks metadata ambox ambox-content ambox-multiple_issues compact-ambox

value: Talk:List of Battlestar Galactica characters

value:
plainlinks metadata ambox ambox-move
presentation

attr: alt src width height data-file-width data-file-height

value: Battlestar Galactica 1x12 Number Eights.jpg

value:
/wiki/Cylon_(2003)#Humanoid_Cylons
mw-redirect
Cylon (2003)

value:
infobox
width:22em;border-spacing: 2px 5px;

value:
/wiki/Cylon_(2003)
mw-redirect
Cylon (2003)

value:
/wiki/Battlestar_Galactica_(ship)
mw-redirect
Battlestar Galactica (ship)

value: Help:Introduction to referencing with Wiki Markup/1

value: plainlinks metadata ambox ambox-content ambox-Refimprove

value: Edit section: Life on Caprica and Galactica

value: List of Battlestar Galactica (re-imagining) locations (page does not exist)

value: Edit section: Relation to Hera Agathon and second death

value: The Eye of Jupiter (Battlestar Galactica)

value: Edit section: Second resurrection and relation with John Cavil

value: Edit section: Relation to Ellen Tigh and return to Galactica

value: float: right; clear: right; margin: 0.5em 0 0.8em 1.4em; width:25em; padding: 10px; border: 1px solid #aaa; font-size: 88%; background-color: #F9F9F9;

value: Edit section: Kidnapping of Hera Agathon

value: List of Battlestar Galactica (reimagining) locations (page does not exist)

value: Edit section: Return to the Colonial Fleet

value: Edit section: Post-occupation of New Caprica

value:
/wiki/Hera_(Cylon-Human)
mw-redirect
Hera (Cylon-Human)

value: Edit section: Relation with daughter Hera

value:
/wiki/Number_Two_(Battlestar_Galactica)
mw-redirect
Number Two (Battlestar Galactica)

value:
/wiki/D%27Anna_Biers
mw-redirect
D'Anna Biers

value:
/wiki/Samuel_Anders
mw-redirect
Samuel Anders

value: Battlestar Galactica: The Face of the Enemy

value: Someone to Watch Over Me (Battlestar Galactica)

value:
/wiki/Caprica_(TV_series)
mw-redirect
Caprica (TV series)

value:
/wiki/Herbert_Jefferson,_Jr.
mw-redirect
Herbert Jefferson, Jr.

value: Women warriors in literature and culture

value:
nofollow
external text
https://www.webcitation.org/6BkCDnYig

value: Template talk:Battlestar Galactica characters

value: Commander Adama (original Battlestar Galactica)

value: nowraplinks collapsible autocollapse navbox-inner

value: List of Battlestar Galactica (1978 TV series) and Galactica 1980 episodes

value: List of Battlestar Galactica (2004 TV series) episodes

value: Music of Battlestar Galactica (2004 TV series)

value: List of awards and nominations received by Battlestar Galactica

value: Battlestar Galactica (fictional spacecraft)

value: List of spacecraft in Battlestar Galactica (2004 TV series)

value: List of Battlestar Galactica video games

value: Battlestar Galactica Collectible Card Game

value: Category:Fictional women soldiers and warriors

value: Category:Fictional secret agents and spies

value: Category:Fictional characters introduced in 2003

value: Category:Wikipedia articles with plot summary needing attention from December 2016

value: Category:All Wikipedia articles with plot summary needing attention

value: Category:Articles that need to differentiate between fact and fiction from March 2011

value: Category:All articles that need to differentiate between fact and fiction

value: Category:Articles with multiple maintenance issues

value: Category:Articles to be merged from December 2016

value: Category:Pages using deprecated image syntax

value: Category:Articles using Infobox character with multiple unlabeled fields

value: Category:Articles needing additional references from June 2008

value: Category:All articles needing additional references

value: Discussion about edits from this IP address [ctrl-alt-n]

value: A list of edits made from this IP address [ctrl-alt-y]

value: You are encouraged to create an account and log in; however, it is not mandatory

value: You're encouraged to log in; however, it's not mandatory. [ctrl-alt-o]

value: Discussion about the content page [ctrl-alt-t]

value: p-namespaces navigation vectorTabs p-namespaces-label

value:
p-variants
navigation
vectorMenu emptyPortlet
p-variants-label

value: Past revisions of this page [ctrl-alt-h]

value: p-views navigation vectorTabs p-views-label

value:
p-cactions
navigation
vectorMenu emptyPortlet
p-cactions-label

value:
mw-wiki-logo
/wiki/Main_Page
Visit the main page

value:
/wiki/Main_Page
Visit the main page [ctrl-alt-z]
z

value: Featured content – the best of Wikipedia

value: Find background information on current events

value:
/wiki/Special:Random
Load a random article [ctrl-alt-x]
x

value: portal navigation p-navigation p-navigation-label

value: Guidance on how to use and edit Wikipedia

value: About the project, what you can do, where to find things

value: A list of recent changes in the wiki [ctrl-alt-r]

value: portal navigation p-interaction p-interaction-label

value: List of all English Wikipedia pages containing links to this page [ctrl-alt-j]

value: Recent changes in pages linked from this page [ctrl-alt-k]

value:
/wiki/Wikipedia:File_Upload_Wizard
Upload files [ctrl-alt-u]
u

value: A list of all special pages [ctrl-alt-q]

value: Permanent link to this revision of the page

value: Link to connected data repository item [ctrl-alt-g]

value: Printable version of this page [ctrl-alt-p]

value:
uls-settings-trigger
Language settings
0
button
true

value: Numéro huit (Battlestar Galactica) – French

value: シャロン・バレリー – Japanese

value: Број осам – Serbian

value: Broj Osam (Battlestar Galactica) – Serbo-Croatian

value: /static/images/wikimedia-button-1.5x.png 1.5x, /static/images/wikimedia-button-2x.png 2x

value: /static/images/poweredby_mediawiki_132x47.png 1.5x, /static/images/poweredby_mediawiki_176x62.png 2x

value:
suggestions
display: none; font-size: 13px;

value: mediawiki ltr sitedir-ltr mw-hide-empty-elt ns-0 ns-subject page-Number_Eight_Battlestar_Galactica rootpage-Number_Eight_Battlestar_Galactica skin-vector action-view