Rg
Roentgenium
Element 111 · Transition metal · Period 7, Group 11
Expected to be a Solid · Discovered 1994
Atomic Properties
| Atomic Number | 111 |
| Atomic Mass | 282.169u |
| Electron Configuration | [Rn]7s2 5f14 6d9 (predicted) |
| Oxidation States | 5, 3, 1, -1 |
Physical Properties
| Standard State | Expected to be a Solid |
| Group Block | Transition metal |
| Year Discovered | 1994 |