| Property | Value |
|---|---|
| Atomic number | 31 |
| Atomic weight | 69.7231 amu |
| Element family | Other metals |
| Electronic configuration | 1s2 |
| Stable and very long lived isotopes | 69Ga: 60.1%, 71Ga: 39.9% |
| Previous element | Zinc |
| Next element | Germanium |
| Density | 5.907 g/cm3 (STP) |
| Melting | 29.76 °C |
| Boiling | 2403 °C |
| Covalent radius | 1.24 Å |
| Van der Waals radius | 1.87 Å |
| Ionic radius | 0.62 Å |
| Metallic radius | 1.35 Å |
| First ionization potential | 5.999 eV |
| Electron affinity | 0.301 eV |
| Electronegativity | 1.81 |
| Discovery year | 1875 |
Gallium is an element number 31 from other metals family. Its symbol is Ga. Gallium atomic weight is 69.7231 amu. Ga stable and long lived isotopes are 69Ga: 60.1%, 71Ga: 39.9%. Gallium electronic configuration is 1s22s22p63s23p63d104s24p1. Sample compounds that contain Gallium are Ga2(SO3)3, Ga(NO2)3, GaN, Ga2(SO4)3, Ga2S3, GaAs.
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