62

Sm

Samarium

150.36

Lathanide
Solid

Discovery

Lecoq de Boisbaudran, Paul-Émile (1879)

Etymology

Unknown

Meaning

A mineral named samarskite

Electron configuration

Electron configuration

Crystal structure

Crystal structure

Rhombohedral

Physical Properties

Phase

  (at 21 °C and 101.325 kPa)

Solid

Melting point

  (at 101.325 kPa)

1072.0 °C

1345.15 K

Boiling point

  (at 101.325 kPa)

3000.0 °C

3273.15 K

Density

  (at 21 °C and 101.325 kPa)

7.52 g/cm3

Electronegativity

1.17