Palladium vs Roentgenium
| Property | Pd Palladium | Rg Roentgenium |
|---|---|---|
| Atomic number | 46 | 111 |
| Symbol | Pd | Rg |
| Name | Palladium | Roentgenium |
| Category | transition-metal | transition-metal |
| Standard Atomic Weight | 106.42 u | 281 u |
| Period | 5 | 7 |
| Group | 10 | 11 |
| Block | d | s |
| Phase at STP | solid | N/A |
| Electron configuration | [Kr]4d10 | [Rn] 7s2 5f14 6d9(predicted) |
| Oxidation states | [1, 2, 3, 4, 5] | [-1, 1, 3, 5] |
| Electronegativity (Pauling) | 2.2 | N/A |
| Electron affinity | 0.557 eV | 1.6 eV |
| Density | 1.200000e+4 kg/m³ | 2.870000e+4 kg/m³ |
| Melting point | 1554.9 °C | -273.15 °C |
| Boiling point | 2962.85 °C | -273.15 °C |
| Discovery year | 1803 | 1994 |