Date of Discovery: 1803
Discoverer: William Wollaston
Name Origin: From the Greek word rhodon (rose)
Uses: coatings
Obtained From: by-product of nickel production

 
Atomic Number: 45
Atomic Mass: 102.9055 amu
Melting Point: 1966.0 °C (2239.15 K, 3570.8 °F)
Boiling Point: 3727.0 °C (4000.15 K, 6740.6 °F)
Crystal Structure: Cubic
Density @ 293 K: 12.41 g/cm3
Color: silverish

 
Isotope Rh-101 Rh-101m Rh-102 Rh-101m Rh-103 Rh-103m Rh-105 Rh-105m Rh-106
Half Life 3.3 years 4.35 days 2.9 years 207.0 days Stable 56.12 min 35.36 hours 40.0 sec 29.9 sec