Chromium vs Meitnerium
| Property | Cr Chromium | Mt Meitnerium |
|---|---|---|
| Atomic number | 24 | 109 |
| Symbol | Cr | Mt |
| Name | Chromium | Meitnerium |
| Category | transition-metal | transition-metal |
| Standard Atomic Weight | 51.9961 u | 278 u |
| Period | 4 | 7 |
| Group | 6 | 9 |
| Block | s | s |
| Phase at STP | solid | N/A |
| Electron configuration | [Ar]3d54s1 | [Rn]7s25f146d7(calculated) |
| Oxidation states | [-4, -2, -1, 0, 1, 2, 3, 4, 5, 6] | [1, 3, 4, 6, 8, 9] |
| Electronegativity (Pauling) | 1.66 | N/A |
| Electron affinity | 0.675 eV | 1.7 eV |
| Density | 7150 kg/m³ | 3.740000e+4 kg/m³ |
| Melting point | 1906.85 °C | -273.15 °C |
| Boiling point | 2670.85 °C | -273.15 °C |
| Discovery year | 1797 | 1982 |