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1992-07-13
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539b
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16 lines
MANGANESE
Atomic symbol - Mn
Atomic weight - 54.93805
Atomic number - 25
Electron configuration - 2-8-13-1
Oxidation states - +2, +3, +4, +6, +7
State of matter - solid
Heavy metal-brittle
Discovered in 1774 by Carl Wilhelm Scheele
Boils at 2097 °C, melts at 1244 °C
Notes:
Manganese is quite abundant. It is a grey-white, hard, brittle metal which is
essential to the process of steel making. Nearly all aluminum and magnesium
alloys contain manganese for improved corrosion resistance.