Mt
Meitnerium
Element 109 · Transition metal · Period 7, Group 9
Solid · Discovered 1982
Atomic Properties
| Atomic Number | 109 |
| Atomic Mass | 277.154u |
| Electron Configuration | [Rn]7s2 5f14 6d7 (calculated) |
| Oxidation States | 9, 8, 6, 4, 3, 1 |
Physical Properties
| Standard State | Solid |
| Group Block | Transition metal |
| Year Discovered | 1982 |