Gallium vs Oganesson
| Property | Ga Gallium | Og Oganesson |
|---|---|---|
| Atomic number | 31 | 118 |
| Symbol | Ga | Og |
| Name | Gallium | Oganesson |
| Category | post-transition-metal | noble-gas |
| Standard Atomic Weight | 69.723 u | 294 u |
| Period | 4 | 7 |
| Group | 13 | 18 |
| Block | p | p |
| Phase at STP | solid | gas |
| Electron configuration | [Ar]4s23d104p1 | [Rn] 7s2 7p6 5f14 6d10(predicted) |
| Oxidation states | [-5, -4, -3, -2, -1, 0, 1, 2, 3] | [-1, 0, 1, 2, 4, 6] |
| Electronegativity (Pauling) | 1.81 | N/A |
| Electron affinity | 0.3 eV | 0.056 eV |
| Density | 5910 kg/m³ | 7000 kg/m³ |
| Melting point | 29.76 °C | -273.15 °C |
| Boiling point | 2203.85 °C | -243.15 °C |
| Discovery year | 1875 | 2006 |