Atomic Properties
- Atomic Number
- 31
- Atomic Mass
- 69.7230 u
- Electron Configuration
- [Ar] 3d10 4s2 4p1
- Electronegativity
- 1.81
- Block
- p-block
- Group
- 13
- Period
- 4
Physical Properties
- Phase (STP)
- solid
- Melting Point
- 302.91 K
- Boiling Point
- 2673.00 K
- Density
- 5.9100 g/cm³
About Gallium
Melts in your hand; used in semiconductors and LEDs.
Isotopes of Gallium
Gallium has 2 naturally occurring isotopes.
| Isotope | Mass Number | Atomic Mass (u) | Abundance | Type |
|---|---|---|---|---|
| 69Ga | 69 | 68.9255735 | 60.11% | Stable |
| 71Ga | 71 | 70.92470258 | 39.89% | Stable |
Data source: NIH PubChem (aggregated from IUPAC, NIST)