Manganese

Source: http://www.tabulka.cz/english/elements/show.asp?id=25

name Manganese
latin Manganum
french Manganése
german Mangan
symbol Mn
proton number 25
atomic weight 54.938049
Pauling electronegativity 1.55
electronic configuration [Ar] 3d54s2
1s22s22p63s23p63d54s2
melting point 1519 K, 1246°C, 2275°F
boiling point 2334 K, 2061°C, 3742°F
group 7
period 4
state (by 20°C) solid
oxidation states +2, +3, +4, +5, +6, +7

Discoverer

Year of discovery Discoverer
1774 Carl W. Scheele (1742-1786)


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