Sam S. Period 9
• Manganese (Mn) is in the group Invert Metals Group.
• At room temperature it a solid
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om er
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A b
m
Nu
• Its melting point is 1246°C (1519 K or 2275°F)
• Its boiling point 2061°C (2334 K or 3742°F)
•It is silver in color
• Discovered by Johan Gottlieb Gahn in 1774
• Its origin is from the Latin word magnes which means
magnet
•It is found in Australia, Brazil, Gabon, India, Russia, and
South Africa
• manganese oxide is used to decolorize glass that is
colored green by iron impurities (catalyst)
•It is a 6.0 on the mineral hardness scale
• Its density7.43 g.cm-3 at 20°C
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Sam S. Period 9
http://education.jlab.org/itselemental/ele025.html
http://www.rsc.org/periodic-table/element/25/manganese
http://www.webelements.com/manganese/geology.html
http://www.lenntech.com/periodic/elements/mn.htm