Ga
Gallium
Element 31 · Post-transition metal · Period 4, Group 13
Solid · Discovered 1875
Atomic Properties
| Atomic Number | 31 |
| Atomic Mass | 69.723u |
| Electron Configuration | [Ar]4s2 3d10 4p1 |
| Electronegativity | 1.81Pauling |
| Atomic Radius | 187pm |
| Ionization Energy | 5.999eV |
| Electron Affinity | 0.3eV |
| Oxidation States | +3 |
Physical Properties
| Standard State | Solid |
| Melting Point | 302.91K |
| Boiling Point | 2477K |
| Density | 5.91g/cm³ |
| Group Block | Post-transition metal |
| Year Discovered | 1875 |