Samarium
Samarium
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Samarium ΒΆ
AtomicNumber: 62
Element: Samarium
Symbol: Sm
AtomicMass: 150.36
NumberofNeutrons: 88
NumberofProtons: 62
NumberofElectrons: 62
Period: 6
Group: nan
Phase: solid
Radioactive: nan
Natural: yes
Metal: yes
Nonmetal: nan
Metalloid: nan
Type: Lanthanide
AtomicRadius: 2.6
Electronegativity: 1.17
FirstIonization: 5.6437
Density: 7.52
MeltingPoint: 1345.15
BoilingPoint: 2067.0
NumberOfIsotopes: 17.0
Discoverer: Boisbaudran
Year: 1879.0
SpecificHeat: 0.197
NumberofShells: 6
NumberofValence: nan