Dear Student,...Manganese is a chemical element with the symbol Mn and atomic number 25. It is not found as a free element in nature; it is often found in minerals in combination with iron. Manganese is a transition metal with important industrial alloy uses, particularly in stainless steels.Name: Manganese. Symbol: Mn. Atomic Number: 25. Atomic Mass: 54.93805 amu. Melting Point: 1245.0 °C (1518.15 K, 2273.0 °F)....regards