96 Cm

Curium

Actinide
Atomic number96
CategoryActinide
Atomic mass247
Electron configuration[Rn]5f⁷ 6d¹ 7s²
Oxidation states+3
Electronegativity1.28
Melting point1,345 °C
Boiling point3,110 °C
Density13.51 g/cm³
Crystal structureHexagonal
Period7
Blockf
Discovered1,944
Crustal abundance0 ppm

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