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Sm

Samarium

#62 · Lanthanide

Mass150.36 u
Density7.52 g/cm³
Melting1345.0 K
Boiling2067.0 K
Electronegativity1.17
Ionization Energy544.5 kJ/mol
Atomic Radius180.0 pm
Blockf-block
State (RT)Solid
Config[Xe] 4f6 6s2
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