45 Rh 102.905502

Rhodium

TRANSITION METAL

Phase: Solid

Discovered: William Hyde Wollaston

Block: D

Summary

Rhodium is a chemical element with symbol Rh and atomic number 45. It is a rare, silvery-white, hard, and chemically inert transition metal. It is a member of the platinum group.

Appearance: silvery white metallic

Source: Wikipedia

Physical Properties

Atomic Mass 102.905502 u

Density 12.41 g/cm³

Melting Point 2237 K

Boiling Point 3968 K

Molar Heat 24.98 J/(mol·K)

Electron Affinity 110.27 kJ/mol

Ionization Energies

1^st: 719.7 kJ/mol

2^nd: 1740 kJ/mol

3^rd: 2997 kJ/mol