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Atomic symbol Pt
Atomic number 78
Atomic mass 194.085
Other Information

Platinum is an extremely unreactive (it is found in its native state) chemical element. It is a catalyst for several reactions (such as the hydrogen half-cell), and is used in catalytic converters and in the synthesis of nitric acid. In addition the element can "absorb both oxygen and hydrogen."[1] The element was first recognized in 1751, although it was used by the Incas before the Spanish arrived in South America.[2]

It is also considered a precious metal, with a per ounce price exceeding that of gold.

See also


  1. Leddicotte, G. W. (1961). The Radiochemistry of Platinum (in English). National Academies. Retrieved on 27 January 2015. “Metallic platinum can absorb both oxygen and hydrogen.” 
  2. History of Platinum (English). RFL (2013). Retrieved on 27 January 2015. “Despite being worked with some skill by South American Indians over 1,000 years ago, it was not until the Spanish conquest of the New World during the fifteenth and sixteenth centuries did news reach Europe. This newly discovered metal was heavier than gold and virtually impossible to corrode with gases or chemicals, and in 1751, platinum was recognized as a newly discovered element.”