Palladium vs Promethium
| Property | Pd Palladium | Pm Promethium |
|---|---|---|
| Atomic number | 46 | 61 |
| Symbol | Pd | Pm |
| Name | Palladium | Promethium |
| Category | transition-metal | lanthanide |
| Standard Atomic Weight | 106.42 u | 145 u |
| Period | 5 | 6 |
| Group | 10 | N/A |
| Block | d | s |
| Phase at STP | solid | solid |
| Electron configuration | [Kr]4d10 | [Xe]6s24f5 |
| Oxidation states | [1, 2, 3, 4, 5] | [2, 3] |
| Electronegativity (Pauling) | 2.2 | N/A |
| Electron affinity | 0.557 eV | 0.129 eV |
| Density | 1.200000e+4 kg/m³ | 7260 kg/m³ |
| Melting point | 1554.9 °C | 1041.85 °C |
| Boiling point | 2962.85 °C | 2999.85 °C |
| Discovery year | 1803 | 1902 |