Periodic Table of the Elements: Lanthanum


Name: Lanthanum
Symbol: La
Atomic Number: 57
Atomic Mass: 138.91
Atomic Volume: 22.54 cc/mol
Discovered By: Mosander
Discovery Date: 1839
Origin of Name: Lanthanum - (Greek) lanthanein (to lie hidden)
Toxicity: Compounds are apparently toxic, but have not been studied adequately.
Summary: Not found free in nature. Lanthanum oxidizes easily in air and hot water. Lanthanum is used to make the alloy "misch metal" used in lighter flints.

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HHe
LiBeBCNOFNe
NaMgAlSiPSClAr
KCaScTiVCrMnFeCoNiCuZnGaGeAsSeBrKr
RbSrYZrNbMoTcRuRhPdAgCdInSnSbTeIXe
CsBaLaCePrNdPmSmEuGdTbDyHoErTmYbLuHfTaWReOsIrPtAuHgTlPbBiPoAtRn
FrRaAcThPaUNpPuAmCmBkCfEsFmMdNoLr

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