← Back to periodic table

Palladium (Pd)

Atomic number: 46 · Category: transition metal · Group 10 · Period 5 · Phase: Solid

Palladium is a chemical element with symbol Pd and atomic number 46. It is a rare and lustrous silvery-white metal discovered in 1803 by William Hyde Wollaston. He named it after the asteroid Pallas, which was itself named after the epithet of the Greek goddess Athena, acquired by her when she slew Pallas.

Atomic mass: 106.421
Density: 12.023
Melting point: 1828.05 K
Boiling point: 3236 K
Appearance: silvery white
Source: Wikipedia
Block: d
Molar heat: 25.98
CPK color:#006985

Electronic structure

Electron configuration: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 4d10
Configuration (semantic): [Kr] 4d10
Shells: 2, 8, 18, 18
Electronegativity (Pauling): 2.2
Electron affinity: 54.24
Ionization energies: 804.4, 1870, 3177

Periodic position

Group: 10
Period: 5
xpos: 10
ypos: 5

Spectral/Bohr images

Image
Palladium Crystal, about 1 gram. Original size in cm: 0.5 x 1
3D Model