62
Sm
Samarium
Lanthanide period 6 f-block discovered: 1879
As a chemical element
Properties of the atom — they do not depend on what substance it is part of.
- Atomic number
- 62
- Atomic mass
- 150.4 a.m.u.
- Electron configuration
- [Xe]6s2 4f6
- Electronegativity
- 1.17 on the Pauling scale
- Atomic radius
- 229 pm
- Ionization energy
- 5.644 eV
- Oxidation states
- +3, +2
As a simple substance
Properties of the substance these atoms form under ordinary conditions.
- State at 25 °C
- Solid
- Melting point
- 1347 K (1 073,85 °C)
- Boiling point
- 2067 K (1 793,85 °C)
- Density
- 7.52 g/cm³