Periodic Table of the Elements: Molybdenum

Name: Molybdenum
Symbol: Mo
Atomic Number: 42
Atomic Mass: 95.94
Atomic Volume: 9.39 cc/mol
Discovered By: Scheele (First isolated as a metal by Hjelm in 1782)
Discovery Date: 1778
Origin of Name: Molybdenum - (Greek) molybdos (lead)
Toxicity: Metallic molybdenum is of low toxicity. The inhalation of molybdenum dust by animals did not produce toxicosis in them. Molybdenum trioxide and molybdates are toxic.
Summary: Not found free in nature. Molybdenum has a very high melting point. Used in ferrous and non-ferrous alloys.


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HHe
LiBeBCNOFNe
NaMgAlSiPSClAr
KCaScTiVCrMnFeCoNiCuZnGaGeAsSeBrKr
RbSrYZrNbMoTcRuRhPdAgCdInSnSbTeIXe
CsBaLaCePrNdPmSmEuGdTbDyHoErTmYbLuHfTaWReOsIrPtAuHgTlPbBiPoAtRn
FrRaAcThPaUNpPuAmCmBkCfEsFmMdNoLr

© Copyright 1998 David August