Silicon vs Gallium
| Property | Si Silicon | Ga Gallium |
|---|---|---|
| Atomic number | 14 | 31 |
| Symbol | Si | Ga |
| Name | Silicon | Gallium |
| Category | metalloid | post-transition-metal |
| Standard Atomic Weight | 28.085 u | 69.723 u |
| Period | 3 | 4 |
| Group | 14 | 13 |
| Block | p | p |
| Phase at STP | solid | solid |
| Electron configuration | [Ne]3s23p2 | [Ar]4s23d104p1 |
| Oxidation states | [-4, -3, -2, -1, 0, 1, 2, 3, 4] | [-5, -4, -3, -2, -1, 0, 1, 2, 3] |
| Electronegativity (Pauling) | 1.9 | 1.81 |
| Electron affinity | 1.385 eV | 0.3 eV |
| Density | 2329.6 kg/m³ | 5910 kg/m³ |
| Melting point | 1413.85 °C | 29.76 °C |
| Boiling point | 3264.85 °C | 2203.85 °C |
| Discovery year | 1824 | 1875 |