Atomic Properties
- Atomic Number
- 62
- Atomic Mass
- 150.3600 u
- Electron Configuration
- [Xe] 4f6 6s2
- Electronegativity
- 1.17
- Block
- f-block
- Group
- —
- Period
- 6
Physical Properties
- Phase (STP)
- solid
- Melting Point
- 1345.00 K
- Boiling Point
- 2173.00 K
- Density
- 7.5200 g/cm³
About Samarium
Used in samarium-cobalt magnets and cancer treatment.
Isotopes of Samarium
Samarium has 7 naturally occurring isotopes.
| Isotope | Mass Number | Atomic Mass (u) | Abundance | Type |
|---|---|---|---|---|
| 144Sm | 144 | 143.9120065 | 3.070% | Stable |
| 147Sm | 147 | 146.9149044 | 14.99% | Stable |
| 148Sm | 148 | 147.9148292 | 11.24% | Stable |
| 149Sm | 149 | 148.9171921 | 13.82% | Stable |
| 150Sm | 150 | 149.9172829 | 7.380% | Stable |
| 152Sm | 152 | 151.9197397 | 26.75% | Stable |
| 154Sm | 154 | 153.9222169 | 22.75% | Stable |
Data source: NIH PubChem (aggregated from IUPAC, NIST)