Fermium

Element information

Atomic properties

Mass: 257.09511 u

Electron configuration: [Rn] 5f12 7s2

Oxidation states: +3

Electronegativity: 1.3

Physical properties

Density: - g/cm³

Standard state: solid

Melting point: 1800 K

Boiling point: - K

₁₀₀Fm

Part of the Periodic Table 2 collection

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