Periodic Table of the Elements: Iridium

Name: Iridium
Symbol: Ir
Atomic Number: 77
Atomic Mass: 192.2
Atomic Volume: 8.84 cc/mol
Discovered By: Tennant
Discovery Date: 1803
Origin of Name: Iridium - (Latin) iris (rainbow, from its brightly colored salts)
Toxicity: No data available on toxicity.
Summary: Occurs as native metal in nature, usually alloyed with rhodium, platinum or gold. Iridium is the most corrosion resistant metal known.


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HHe
LiBeBCNOFNe
NaMgAlSiPSClAr
KCaScTiVCrMnFeCoNiCuZnGaGeAsSeBrKr
RbSrYZrNbMoTcRuRhPdAgCdInSnSbTeIXe
CsBaLaCePrNdPmSmEuGdTbDyHoErTmYbLuHfTaWReOsIrPtAuHgTlPbBiPoAtRn
FrRaAcThPaUNpPuAmCmBkCfEsFmMdNoLr

© Copyright 1998 David August