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, which is 2 in the outermost shell.
Related: electron configuration, the Bohr model, valence electrons.
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
Samarium: frequently asked questions
- What is Samarium?
- Samarium (Sm) is the chemical element with atomic number 62. It is a metal: specifically a lanthanide.
- What is the atomic number of Samarium?
- Samarium's atomic number is 62, which means every Samarium atom has 62 protons in its nucleus.
- What is the electron configuration of Samarium?
- The electron configuration of Samarium is 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f6 (noble-gas shorthand: [Xe] 4f6 6s2). Its electrons are arranged in shells of 2, 8, 18, 24, 8, 2, with 2 in the outermost shell.
- Is Samarium a metal or a nonmetal?
- Samarium is a metal: specifically a lanthanide.
- What group and period is Samarium in?
- Samarium sits in the f-block (the lanthanide row) of period 6 on the periodic table.
- Is Samarium a solid, liquid, or gas?
- At room temperature, Samarium is a solid.
Position in the periodic table
Data compiled from Wikipedia, PubChem, and IUPAC. Source.