Samarium (Sm) — Element 62: Properties & Data | Aladdin Scientific
Samarium(Sm) — Element 62
Samarium (Sm) is a lanthanide with atomic number 62 and atomic mass 150.4. It has melting point 1347 K (1074 °C), boiling point 2067 K (1794 °C), density 7.52 g/cm³. It sits in period 6 of the periodic table and was discovered in 1879.
Key facts
| Atomic mass | 150.4000 u |
|---|---|
| Electron configuration | [Xe]6s2 4f6 |
| Oxidation states | +3, +2 |
| Electronegativity (Pauling) | 1.17 |
| Atomic radius (van der Waals) | 229 pm |
| Ionization energy | 5.644 eV |
| Melting point | 1347 K |
| Boiling point | 2067 K |
| Density | 7.52 g/cm³ |
| Standard state | Solid |
| Year discovered | 1879 |
Frequently asked questions
What is the electron configuration of samarium?
The ground-state electron configuration of samarium is [Xe]6s2 4f6.
What group and period is samarium in?
Samarium (Sm) is in period 6 (lanthanide series) of the periodic table, classified as a lanthanide.
What is the melting point of samarium?
Samarium melts at 1347 K (1074 °C).
What is the standard state of samarium?
Samarium is a solid at standard temperature and pressure.
Related elements
About this data: property values compiled from IUPAC Standard Atomic Weights (2021), the NIST Atomic Spectra Database, and PubChem. Curated by the Aladdin Scientific technical team. Last reviewed: .