62 Sm
Lanthanide
Samarium
Used in magnets and cancer therapy.
Properties of Samarium
- Atomic number (Z)
- 62
- Symbol
- Sm
- Atomic mass
- 150.36 g/mol
- Category
- Lanthanide
- Group
- 3
- Period
- 6
- Electron configuration
- [Xe] 4f⁶ 6s²
- Electronegativity (Pauling)
- 1.17
- Atomic radius
- 238 pm
- First ionization energy
- 545 kJ/mol
- Melting point
- 1345 K (1071.8 °C)
- Boiling point
- 2067 K (1793.8 °C)
- Density
- 7.52 g/cm³
- Phase at 25 °C
- Solid
- Discovered
- Discovered in 1879