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Copernicium [Cp]
CAS-ID: 54084-26-3
An: 112 N: 173
Am: [285] g/mol
Group No: 12
Group Name: Transactinides
Block: d-block  Period: 7
State: presumably a liquid at 298 K
Colour: unknown, but probably metallic and silvery white or grey in appearance Classification: Metallic
Boiling Point: unknown
Melting Point: unknown
Density: unknown
Availability: This item is purely synthetic and is not available commercially.
Discovery Information
Who: GSI
When: 1996
Where: GSI, Darmstadt, Germany
Name Origin
Named after Nicolaus Copernicus.
 "Copernicium" in different languages.
Sources
Element 112 was discovered on 9th February 1996 at 22:37 at the GSI in Darmstadt, Germany.
Uses
None.
History
Copernicium was first created on February 9, 1996 at the Gesellschaft für Schwerionenforschung (GSI) in Darmstadt, Germany. This element was created by fusing a zinc atom with a lead atom by accelerating zinc nuclei into a lead target in a heavy ion accelerator.
Previously known as Ununbium (Uub).
Notes
As only a few atoms of element 112 have ever been made (through a nuclear reaction involving fusing a zinc atom with a lead atom) isolation of an observable quantity has never been achieved, and may well never be. This is because atoms of the element decompose through the emission of a-particles with a half life of only about 240 microseconds.