Sm
Samarium Symbol (Sm)
Samarium is element 62 of the periodic table. Copy its symbol Sm and see its atomic weight, electron configuration and physical properties.
What does Sm mean?
Sm is the chemical symbol for samarium, element number 62 in the periodic table. Samarium is a lanthanide in the f-block, period 6. It is a solid at room temperature and was discovered in 1879.
Codes and properties
| Chemical symbol | Sm |
|---|---|
| Atomic number (Z) | 62 |
| Atomic weight (PubChem) | 150.4 |
| Group / period | f-block / 6 |
| Element category | lanthanide |
| Electron configuration | [Xe]6s² 4f⁶ |
| State at 20 °C | Solid |
| Oxidation states | +3, +2 |
| Electronegativity (Pauling) | 1.17 |
| Melting point | 1347 K (1073.85 °C) |
| Boiling point | 2067 K (1793.85 °C) |
| Density | 7.52 g/cm³ |
| Discovered | 1879 |
How to type Sm
- Plain text: type
Sm— element symbols are ordinary Latin letters, with the first letter capitalised and the second lowercase. - Subscripts in formulas: use Unicode subscript digits (₀₁₂₃₄₅₆₇₈₉) for formulas such as H₂O — copy them from the chemistry keyboard.
- LaTeX: write
\mathrm{Sm}in math mode, or use the mhchem package:\ce{Sm}. - HTML:
Sm; for subscripts use<sub>, e.g.H<sub>2</sub>O.
Frequently asked questions
What is the chemical symbol for samarium?
The chemical symbol for samarium is Sm.
What is the atomic number of samarium?
Samarium has atomic number 62, meaning each atom has 62 protons.
What is the electron configuration of samarium?
The ground-state electron configuration of samarium is [Xe]6s² 4f⁶.
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Reference: Samarium on PubChem (NIH)