Periodic Table of the Elements: Manganese

Name: Manganese
Symbol: Mn
Atomic Number: 25
Atomic Mass: 54.9381
Atomic Volume: 7.36 cc/mol
Discovered By: First isolated by Gahn in 1774
Discovery Date: 1774
Origin of Name: Manganese - (Latin) magnes (magnet, from magnetic properties of pyrolusite, an ore)
Toxicity: Finely dispersed metallic manganese is toxic. Compounds are poisonous and attack the central nervous system.
Summary: Manganese is responsible for the purple color of amethyst.


back to table

HHe
LiBeBCNOFNe
NaMgAlSiPSClAr
KCaScTiVCrMnFeCoNiCuZnGaGeAsSeBrKr
RbSrYZrNbMoTcRuRhPdAgCdInSnSbTeIXe
CsBaLaCePrNdPmSmEuGdTbDyHoErTmYbLuHfTaWReOsIrPtAuHgTlPbBiPoAtRn
FrRaAcThPaUNpPuAmCmBkCfEsFmMdNoLr

© Copyright 1998 David August