Fm
Fermium
Element 100 · Actinide · Period 7, Group 14
Solid · Discovered 1952
Atomic Properties
| Atomic Number | 100 |
| Atomic Mass | 257.09511u |
| Electron Configuration | [Rn] 5f12 7s2 |
| Electronegativity | 1.3Pauling |
| Ionization Energy | 6.5eV |
| Oxidation States | +3 |
Physical Properties
| Standard State | Solid |
| Melting Point | 1800K |
| Group Block | Actinide |
| Year Discovered | 1952 |