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Rhodium (Rh): Fun Facts and Information About the Element


What is the symbol? Rh
What is the atomic number? 45
What is the atomic weight? 102.9055
What is the melting point in Celsius? 1966
What is the boiling point in Celsius? 3727
What is the density (g/cm3)? 12.41
What year was it discovered? 1803
Who discovered the element? William Hyde Wollaston
What group is the element in? 9
What is the electron configuration? [Kr] 4d8 5s1
What is the ionization energy? 7.4589
What element category is it in? Transition Elements

Where is Rhodium Found?

Rhodium occurs natively in river sands of the Urals and in North and South America. It is also found in the copper-nickel sulfide area of the Sudbury, Ontario region.

What is Rhodium Used For?

Rhodium’s primary use is as an alloying agent to harden platinum and palladium which are used for furnace windings, thermo-coupling elements, bushings for glass fiber production, electrodes for aircraft spark plugs, and laboratory crucibles. Rhodium is also used for jewelry, for decoration, and as a catalyst.