* Rhodium is a member of the transition metals family:
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RHODIUM / Rh / 45
A lustrous, silvery, hard metal, part of the "platinum" group of
precious metals. It is unusually precious because it is rare.
Only one isotope that occurs in nature, Rh<103/45>; it is stable.
atomic weight: 102.90550
abundance: 79th
density: 12.41 gm/cc
melting point: 1,966 C
boiling point: 3,727 C
valence: 2 3 4 5 6
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Rhodium is only produced in a handful of tonnes a year. It is mostly used in powdered "rhodium black" form as a catalyst, primarily for catalytic converters for cars. It also has some minor optical applications.
