Atomic Number: 112 Atomic Radius:  —
Atomic Symbol: Cn Melting Point:  —
Atomic Mass: 285 Boiling Point:  —
Electron Configuration: Oxidation States:  —
Copernicium - Copernicus
Le copernicium doit son nom à l’astronome Nicolas Copernic.


On February 9, 1996, element 277Cn was created at the Gesellschaft fur Schwerionenforschung in Darmstadt, Germany by using the reaction 208Pb +70Zn. Unlike element 110, Copernicium has properties more similar to radon than mercury, but due to its short half-life, it is difficult to study. As of 2011, Copernicum’s most stable isotope has an atomic weight of 285.


Los Alamos National Laboratory, Periodic Table of Elements,