The Periodic Table of Elements
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62
Sm
Samarium
Summary
Samarium is a chemical element with symbol Sm and atomic number 62. It is a moderately hard silvery metal that readily oxidizes in air. Being a typical member of the lanthanide series, samarium usually assumes the oxidation state +3.
Block: f
Period: 6
Group: 3
Atomic Mass: 150.362 g/mol (amu)
Discovered By: Lecoq de Boisbaudran
Phase: Solid
Boiling Point: 2173 K
Melting Point: 1345 K
Type: lanthanide
Density: 7.52 g/cm3
Electron Configuration: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f6
Electron Configuration (Semantic): [Xe] 4f6 6s2