Rhodium

Rhodium is a chemical element. It has the chemical symbol Rh. It has the atomic number 45. It is a rare metal. It is silver white and hard. In chemistry it is placed in a group of metal elements named the transition metals. It is also part of the platinum group. Rhodium is found in platinum ores.

Rhodium foil and wire.

Rhodium is used as a catalyst in some platinum alloys. It is the most expensive precious metal.[1]

References
  1. Precious Metal Prices Index taxfreegold.co.uk (HTML). Accessed 19 November 2006.


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