Chromium vs Oganesson
| Property | Cr Chromium | Og Oganesson |
|---|---|---|
| Atomic number | 24 | 118 |
| Symbol | Cr | Og |
| Name | Chromium | Oganesson |
| Category | transition-metal | noble-gas |
| Standard Atomic Weight | 51.9961 u | 294 u |
| Period | 4 | 7 |
| Group | 6 | 18 |
| Block | s | p |
| Phase at STP | solid | gas |
| Electron configuration | [Ar]3d54s1 | [Rn] 7s2 7p6 5f14 6d10(predicted) |
| Oxidation states | [-4, -2, -1, 0, 1, 2, 3, 4, 5, 6] | [-1, 0, 1, 2, 4, 6] |
| Electronegativity (Pauling) | 1.66 | N/A |
| Electron affinity | 0.675 eV | 0.056 eV |
| Density | 7150 kg/m³ | 7000 kg/m³ |
| Melting point | 1906.85 °C | -273.15 °C |
| Boiling point | 2670.85 °C | -243.15 °C |
| Discovery year | 1797 | 2006 |