Periodic Table of the Elements: Platinium

Name: Platinium
Symbol: Pt
Atomic Number: 78
Atomic Mass: 195.09
Atomic Volume: 9.09 cc/mol
Discovered By: Discovered by Westerners in S. America by Ulloa in 1735, but platinum was used by pre-Colombian Indians
Discovery Date: 1735
Origin of Name: Platinum - (Spanish) platina (silver)
Toxicity: Not toxic. Platinum compounds are toxic (diseases of the skin).
Summary: Found native in nature, usually alloyed with other members of the platinum group, and in ores. Platinum does not corrode in air. Used for catalysts, in jewelry, and in scientific instruments. The standard meter bar in Paris, which was the standard metric length for many years, is an alloy of 10% iridium and 90% platinum.


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HHe
LiBeBCNOFNe
NaMgAlSiPSClAr
KCaScTiVCrMnFeCoNiCuZnGaGeAsSeBrKr
RbSrYZrNbMoTcRuRhPdAgCdInSnSbTeIXe
CsBaLaCePrNdPmSmEuGdTbDyHoErTmYbLuHfTaWReOsIrPtAuHgTlPbBiPoAtRn
FrRaAcThPaUNpPuAmCmBkCfEsFmMdNoLr

© Copyright 1998 David August