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Reference
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Fermium
Chemical Properties & Compounds
| Symbol | Atomic Number | Atomic Weight | Melting Point | Boiling Point | Phase | Density | Classification |
| Fm | 100 | 257 | 1527 °C | Unknown | Solid | Unknown | Metal  |
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| General |
| Name, Symbol, Number |
fermium, Fm, 100 |
| Chemical series |
actinides |
| Group, Period, Block |
n/a, 7, f |
| Appearance |
unknown, probably silvery
white or metallic gray |
| Standard atomic weight |
(257) g·mol−1 |
| Electron configuration |
[Rn] 5f12 7s2 |
| Electrons per shell |
2, 8, 18, 32, 30, 8, 2 |
| Physical properties |
| Phase |
solid |
| Melting point |
1800 K
(1527 °C, 2781 °F) |
| Atomic properties |
| Oxidation states |
2, 3 |
| Electronegativity |
1.3 (scale Pauling) |
| Ionization energies |
1st: 627 kJ/mol |
| Miscellaneous |
| CAS registry number |
7440-72-4 |
| Selected isotopes |
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| References |
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Fermium Compounds
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Source: Wikipedia article Fermium
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Chemistry Quick Facts