62 Sm 150.362
Samarium
lanthanide
Properties
- Atomic number
- 62
- Atomic mass
- 150.362 u
- Category
- lanthanide
- Group
- f-block
- Period
- 6
- Block
- f-block
- State (room temp)
- Solid
- Outer-shell electrons
- 2
- Electronegativity
- 1.17 (Pauling)
- Density
- 7.52 g/cm³
- Melting point
- 1071.85 °C
- Boiling point
- 1899.85 °C
Electron configuration
1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s² 4f⁶
Noble-gas shorthand: [Xe] 4f⁶ 6s²
Electrons per shell: 2, 8, 18, 24, 8, 2 — that's 2 in the outermost shell.
About Samarium
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.
- Discovered by Lecoq de Boisbaudran
- Appearance: silvery white
Position in the periodic table
Data compiled from Wikipedia, PubChem, and IUPAC. Source.