112Cn286.179
Copernicium
Transition Metal
Expected to be a Solid at STP
Period 7Group 12Block DDiscovered 1996
[Rn]7s2 5f14 6d10 (predicted)
Copernicium is a chemical element with symbol Cn and atomic number 112. It is an extremely radioactive synthetic element that can only be created in a laboratory. The most stable known isotope, copernicium-285, has a half-life of approximately 29 seconds, but it is possible that this copernicium isotope may have a nuclear isomer with a longer half-life, 8.9 min.
📖 Read more on Wikipedia →Atomic Properties
| Atomic Number | 112 |
| Atomic Mass | 286.179 u |
| Electron Configuration | [Rn]7s2 5f14 6d10 (predicted) |
| Oxidation States | 2, 1, 0 |
| Block | D |
Physical Properties
| Standard State | Expected to be a Solid |
Classification
| Category | Transition Metal |
| Group Block | Transition metal |
| Period | 7 |
| Group | 12 |
| Block | D |
Discovery
| Year Discovered | 1996 |
| Discovered By | Gesellschaft für Schwerionenforschung |
| Electron Shells | 2, 8, 18, 32, 32, 18, 2 |