Palladium vs Actinium
| Property | Pd Palladium | Ac Actinium |
|---|---|---|
| Atomic number | 46 | 89 |
| Symbol | Pd | Ac |
| Name | Palladium | Actinium |
| Category | transition-metal | actinide |
| Standard Atomic Weight | 106.42 u | 227 u |
| Period | 5 | 7 |
| Group | 10 | N/A |
| Block | d | s |
| Phase at STP | solid | solid |
| Electron configuration | [Kr]4d10 | [Rn]7s26d1 |
| Oxidation states | [1, 2, 3, 4, 5] | [3] |
| Electronegativity (Pauling) | 2.2 | 1.1 |
| Electron affinity | 0.557 eV | 0.35 eV |
| Density | 1.200000e+4 kg/m³ | 1.007000e+4 kg/m³ |
| Melting point | 1554.9 °C | 1050.85 °C |
| Boiling point | 2962.85 °C | 3197.85 °C |
| Discovery year | 1803 | 1899 |