Gallium vs Xenon
| Property | Ga Gallium | Xe Xenon |
|---|---|---|
| Atomic number | 31 | 54 |
| Symbol | Ga | Xe |
| Name | Gallium | Xenon |
| Category | post-transition-metal | noble-gas |
| Standard Atomic Weight | 69.723 u | 131.293 u |
| Period | 4 | 5 |
| Group | 13 | 18 |
| Block | p | p |
| Phase at STP | solid | gas |
| Electron configuration | [Ar]4s23d104p1 | [Kr]5s24d105p6 |
| Oxidation states | [-5, -4, -3, -2, -1, 0, 1, 2, 3] | [0, 2, 4, 6, 8] |
| Electronegativity (Pauling) | 1.81 | 2.6 |
| Electron affinity | 0.3 eV | -0.8 eV |
| Density | 5910 kg/m³ | 5.887 kg/m³ |
| Melting point | 29.76 °C | -111.79 °C |
| Boiling point | 2203.85 °C | -108.1 °C |
| Discovery year | 1875 | 1898 |