Atomic Properties
- Atomic Number
- 3
- Atomic Mass
- 6.9400 u
- Electron Configuration
- [He] 2s1
- Electronegativity
- 0.98
- Block
- s-block
- Group
- 1
- Period
- 2
Physical Properties
- Phase (STP)
- solid
- Melting Point
- 453.65 K
- Boiling Point
- 1603.00 K
- Density
- 0.5340 g/cm³
About Lithium
Lightest metal; used in batteries and psychiatric medication.
Isotopes of Lithium
Lithium has 2 naturally occurring isotopes.
| Isotope | Mass Number | Atomic Mass (u) | Abundance | Type |
|---|---|---|---|---|
| 6Li | 6 | 6.015122887 | 7.590% | Stable |
| 7Li | 7 | 7.016003437 | 92.41% | Stable |
Data source: NIH PubChem (aggregated from IUPAC, NIST)