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Palladium (Pd)
Atomic number 46 · transition
| Atomic number | 46 |
|---|---|
| Atomic mass | 106.42 u |
| Molar mass | 106.42 g/mol |
| Category | transition |
| Group / period / block | 10 / 5 / d |
| Electron configuration | [Kr] 4d10 |
| Electrons per shell | 2, 8, 18, 18 |
| Electronegativity (Pauling) | 2.2 |
| Atomic radius | 140.0 pm |
| Density | 12.0 g/cm³ |
| First ionisation energy | 8.3368 eV |
| Melting point | 1827.95 K (1554.80 °C) |
| Boiling point | 3236.15 K (2963.00 °C) |
| Common oxidation states | +2, +4 |
| Abundance in Earth's crust | 0.015 ppm |
Uses
Catalytic converters, electronics
Discovery
1803, William Wollaston