Argon vs Palladium
| Property | Ar Argon | Pd Palladium |
|---|---|---|
| Atomic number | 18 | 46 |
| Symbol | Ar | Pd |
| Name | Argon | Palladium |
| Category | noble-gas | transition-metal |
| Standard Atomic Weight | 39.948 u | 106.42 u |
| Period | 3 | 5 |
| Group | 18 | 10 |
| Block | p | d |
| Phase at STP | gas | solid |
| Electron configuration | [Ne]3s23p6 | [Kr]4d10 |
| Oxidation states | [0] | [1, 2, 3, 4, 5] |
| Electronegativity (Pauling) | N/A | 2.2 |
| Electron affinity | -1 eV | 0.557 eV |
| Density | 1.7837 kg/m³ | 1.200000e+4 kg/m³ |
| Melting point | -189.35 °C | 1554.9 °C |
| Boiling point | -185.85 °C | 2962.85 °C |
| Discovery year | 1894 | 1803 |