Palladium was discovered in 1803 by W. H. Wollaston in England. It is named after the asteroid Pallas.
Name: Palladium Symbol: Pd Atomic number: 46 Atomic weight: 106.42 State: solid Group, period, block: 10, 5, d Color: silvery white Classification: transition metal Electron configuration: 4d10
Density: 12.023 g/cm-3 Melting point: 1828.05 K,1554.9 °C,2830.82 °F Boiling point: 3236 K,2963 °C,5365 °F
Oxidation states: 0, +1, +2, +4, +6 Electronegativity: 2.20 (Pauling scale) Ionization energies: 1st: 804.4 kJ·mol-1 Covalent radius: 139±6 pm Van der Waals radius: 163 pm
There are six naturally occurring isotopes of palladium exist, 102Pd, 105Pd, 106Pd, 108Pd, and 110Pd.