NO. 046Transition

Pd

Palladium

Palladium is a precious metal widely used in catalytic converters, electronics, and hydrogen storage.

Crystal Structure

Face-centered cubic (fcc)

Atomic Mass106.42 u

Density12.02 g/cm³

Melting Point1828 K

Boiling Point3236 K

Atomic Radius137 pm

Electronegativity2.2

Ionization Energy804 kJ/mol

Electron Affinity54 kJ/mol

Bonding TypeMetallic

Oxidation States2, 4

Acid/BaseNeutral

ReactivityLow

Electron Configuration

[Kr] 4d10

Discovered ByWilliam Hyde Wollaston

Year1803

Known Isotopes

Pd-102Pd-104Pd-105Pd-106Pd-108Pd-110