Template:Infobox copernicium

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[[Category:Template:Pagetype with short description]]

Copernicium, 112Cn
Copernicium
Pronunciation/ˌkpərˈnɪsiəm/ (Template:Respell)
Mass number[285]
Copernicium in the periodic table
Template:Periodic table (32 columns, micro) Hg

Cn

(Uhh)
roentgeniumcoperniciumnihonium
Atomic number (Z)112
Groupgroup 12
Periodperiod 7
Block  d-block
Electron configuration[Rn] 5f14 6d10 7s2 (predicted)[1]
Electrons per shell2, 8, 18, 32, 32, 18, 2 (predicted)
Physical properties
Phase at STPliquid (predicted)[2]
Melting point283 ± 11 K ​(10 ± 11 °C, ​50 ± 20 °F) (predicted)[2]
Boiling point340 ± 10 K ​(67 ± 10 °C, ​153 ± 18 °F)[2] (predicted)
Density (near r.t.)14.0 g/cm3 (predicted)[2]
Triple point283 K, ​25 kPa (predicted)[2]
Atomic properties
Oxidation states0, (+1), +2, (+4) (parenthesized: prediction)[1][3][4]
Ionization energies
  • 1st: 1155 kJ/mol
  • 2nd: 2170 kJ/mol
  • 3rd: 3160 kJ/mol
  • (more) (all estimated)[1]
Atomic radiuscalculated: 147 pm[1][4] (predicted)
Covalent radius122 pm (predicted)[5]
Other properties
Natural occurrencesynthetic
Crystal structurehexagonal close-packed (hcp)
Hexagonal close-packed crystal structure for copernicium

(predicted)[2]
CAS Number54084-26-3
History
Namingafter Nicolaus Copernicus
DiscoveryGesellschaft für Schwerionenforschung (1996)
Main isotopes of copernicium
[[Isotope|IsoTemplate:Shytope]] [[Natural abundance|AbunTemplate:Shydance]] Half-life (t1/2) Decay mode [[Decay product|ProTemplate:Shyduct]]
277Cn syn 0.69 ms α 273Ds
281Cn syn 0.18 s[6] α 277Ds
282Cn syn 0.91 ms SF
283Cn syn 4.2 s[7] 90% α 279Ds
10% SF
EC? 283Rg
284Cn syn 98 ms 98% SF
2% α[8] 280Ds
285Cn syn 28 s α 281Ds
286Cn syn 8.45 s ? SF
Category Category: Copernicium
| references

[[Category:Infobox templates|Template:Remove first word]]

data m.p. cat
in calc from C diff report ref
C 10
K 283 283 0
F 50 50 0 Template:Subpage other
max precision 0
WD Template:Wikidata Script error: No such module "EditAtWikidata". Template:Wikidata
input C: 10 ± 11, K: 283 ± 11, F: 50 ± 20
comment (predicted)[2]
data b.p. cat
in calc from C diff report ref
C 67
K 340 340 0
F 153 153 0 Template:Subpage other
max precision 0
WD Template:Wikidata Script error: No such module "EditAtWikidata". Template:Wikidata
input C: 67 ± 10, K: 340 ± 10, F: 153 ± 18
comment (predicted)[2]
Rg ←

i'box Rg

iso
112
Cn (E)
→ Nh

i'box Nh

  Data sets read by {{Infobox element}}
Name and identifiers
Top image (caption, alt)
Pronunciation
Category (enwiki)
Standard atomic weight
  most stable isotope
Natural occurrence
Phase at STP
Oxidation states
Spectral lines image
Electron configuration (cmt, ref)
Term symbol * (cmt, ref)
Wikidata *
* Not used in {{Infobox element}} (2019-02-03)
See also {{Infobox element/symbol-to--navbox}}

References

  1. 1.0 1.1 1.2 1.3 Hoffman, Darleane C.; Lee, Diana M.; Pershina, Valeria (2006). "Transactinides and the future elements". In Morss; Edelstein, Norman M.; Fuger, Jean (eds.). The Chemistry of the Actinide and Transactinide Elements (3rd ed.). Dordrecht, The Netherlands: Springer Science+Business Media. ISBN 978-1-4020-3555-5.
  2. 2.0 2.1 2.2 2.3 2.4 2.5 2.6 Mewes, J.-M.; Smits, O. R.; Kresse, G.; Schwerdtfeger, P. (2019). "Copernicium is a Relativistic Noble Liquid". Angewandte Chemie International Edition. doi:10.1002/anie.201906966.
  3. Gäggeler, Heinz W.; Türler, Andreas (2013). "Gas Phase Chemistry of Superheavy Elements". The Chemistry of Superheavy Elements. Springer Science+Business Media. pp. 415–483. doi:10.1007/978-3-642-37466-1_8. ISBN 978-3-642-37465-4. Retrieved 2018-04-21.
  4. 4.0 4.1 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.
  5. Chemical Data. Copernicium - Cn, Royal Chemical Society
  6. Utyonkov, V. K.; Brewer, N. T.; Oganessian, Yu. Ts.; et al. (30 January 2018). "Neutron-deficient superheavy nuclei obtained in the 240Pu+48Ca reaction". Physical Review C. 97 (14320): 1–10. Bibcode:2018PhRvC..97a4320U. doi:10.1103/PhysRevC.97.014320.
  7. Chart of Nuclides. Brookhaven National Laboratory
  8. Såmark-Roth, A.; Cox, D. M.; Rudolph, D.; et al. (2021). "Spectroscopy along Flerovium Decay Chains: Discovery of 280Ds and an Excited State in 282Cn". Physical Review Letters. 126: 032503. doi:10.1103/PhysRevLett.126.032503.
  9. Soverna S 2004, 'Indication for a gaseous element 112,' in U Grundinger (ed.), GSI Scientific Report 2003, GSI Report 2004-1, p. 187, ISSN 0174-0814

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