It is a hard, brittle, silvery metal, often found in minerals in combination with iron. Manganese was first isolated in the 1770s. Manganese is a transition ...
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Manganese is chemical element 25 on the periodic table. Its symbol is Mn. (Some people get it confused with magnesium, the symbol is Mg).
Manganese is a chemical element, designated bi the seembol Mn. It haes the atomic nummer 25. It is foond as a free element in naitur (eften in combination ...
Manganese is a chemical element with symbol Mn and atomic number 25. Manganese may also refer to: Manganese, Minnesota, a ghost town; Manganese, ...