Wikipedia

Template:Infobox copernicium

Copernicium, 112Cn
Copernicium
Pronunciation/ˌkoʊpərˈnɪsiəm/ ​(KOH-pər-NISS-ee-əm)
Mass number[285]
Copernicium in the periodic cairt
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 Airn Cobalt Nickel Capper Zinc Gallium Germanium Arsenic Selenium Bromine Krypton
Rubidium Strontium Yttrium Zirconium Niobium Molybdenum Technetium Ruthenium Rhodium Palladium Siller (element) 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 Gowd Mercur (element) Thallium Leid (element) 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 Ununtrium Flerovium Ununpentium Livermorium Ununseptium Ununoctium
Hg
↑
Cn
↓
(Uhq)
roentgenium ← copernicium → nihonium
Atomic nummer (Z)112
Groupgroup 12
Periodperiod 7
Blockd-block
Element category  Post-transeetion metal
Electron confeeguration[Rn] 5f14 6d10 7s2 (predictit)[1]
Electrons per shell2, 8, 18, 32, 32, 18, 2 (predictit)
Pheesical properties
Phase at STPunknown
Bylin pynt357+112
−108 K ​(84+112
−108 °C, ​183+202
−194 °F)[2]
Density (near r.t.)23.7 g/cm3 (predicted)[1]
Atomic properties
Oxidation states0, (+1), +2, (+4) (Template:Engvar: prediction)[1][3][4]
Ionisation energies
  • 1st: 1154.9 kJ/mol
  • 2nd: 2170.0 kJ/mol
  • 3rd: 3164.7 kJ/mol
  • (more) (aw estimatit)[1]
Atomic radiusempirical: 147 pm (predictit)[1][4]
Covalent radius122 pm (predictit)[5]
Ither properties
Naitural occurrencesynthetic
Creestal structur ​hexagonal close-packed (hcp)
Hexagonal close-packed creestal structur for copernicium

(predictit)[6]
CAS Nummer54084-26-3
History
Naminafter Nicolaus Copernicus
DiskiveryGesellschaft für Schwerionenforschung (1996)
Main isotopes o copernicium
Iso­tope Abun­dance Hauf-life (t1/2) Decay mode Pro­duct
285Cn syn 29 s α 281Ds
285mCn ? syn 8.9 min α 281mDs ?
283Cn syn 4 s[7] 90% α 279Ds
10% SF
283mCn ?? syn ~7.0 min SF
| references

Check temperaturs Cn: na inpit for C, K, F.

style="text-align:left"|
in calc from C diff report ref
C 84 — —
K 357 357 0
F 183 183 0
WD Edit this at Wikidata
input C: 84+112
−108, K: 357+112
−108, F: 183+202
−194
comment [2]

References

Thir references will appear in the airticle, but this list appears anerly on this page.
  1. ↑ a b c d e f 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. ↑ Eichler, R.; Aksenov, N. V.; Belozerov, A. V.; Bozhikov, G. A.; Chepigin, V. I.; Dmitriev, S. N.; Dressler, R.; Gäggeler, H. W.; et al. (2008). "Thermochemical and physical properties of element 112". Angewandte Chemie. 47 (17): 3262–6. doi:10.1002/anie.200705019. Retrieved 5 November 2013.
  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. Retrieved 21 Apryle 2018.
  4. ↑ 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.
  5. ↑ Chemical Data. Copernicium - Cn, Royal Chemical Society
  6. ↑ Gaston, Nicola; Opahle, Ingo; Gäggeler, Heinz W.; Schwerdtfeger, Peter (2007). "Is eka-mercury (element 112) a group 12 metal?". Angewandte Chemie. 46 (10): 1663–6. doi:10.1002/anie.200604262. Retrieved 5 November 2013.
  7. ↑ Chart of Nuclides. Brookhaven National Laboratory
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