Chromium vs Cadmium
| Property | Cr Chromium | Cd Cadmium |
|---|---|---|
| Atomic number | 24 | 48 |
| Symbol | Cr | Cd |
| Name | Chromium | Cadmium |
| Category | transition-metal | transition-metal |
| Standard Atomic Weight | 51.9961 u | 112.414 u |
| Period | 4 | 5 |
| Group | 6 | 12 |
| Block | s | s |
| Phase at STP | solid | solid |
| Electron configuration | [Ar]3d54s1 | [Kr]5s24d10 |
| Oxidation states | [-4, -2, -1, 0, 1, 2, 3, 4, 5, 6] | [-2, 1, 2] |
| Electronegativity (Pauling) | 1.66 | 1.69 |
| Electron affinity | 0.675 eV | -0.7 eV |
| Density | 7150 kg/m³ | 8690 kg/m³ |
| Melting point | 1906.85 °C | 321.07 °C |
| Boiling point | 2670.85 °C | 766.85 °C |
| Discovery year | 1797 | 1817 |