SAMARIUM
Sm
SAMARIUM
Definition from the mineral 'samarskite' named after Col. VS samarsky of russia.
Discovery 1879
Uses Optical glass and masers
Group of Elements Lanthanide(Solid)
Atomic Weight 150.36
Oxidation State +2,3
Melting Point 1072
Boiling Point 1778
Density 7.54 g/cm3
Electronegativity 1.2