- Atomic Radius (Å)
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.
46 Atomic Number
106.42 u Atomic Mass
1825.15 K Melting Point
3236 K Boiling Point
12.02 g/cm³ Density
1.8 Å Atomic Radius
1.39 Å Covalent Radius
2.2 Electronegativity
8.34 eV First Ionization Energy
54.24 Electron Affinity
5 Number of Shells
2, 8, 18, 18 Electron Shell Occupations
0.24 J/g Specific Heat