Manganese

25 chromium ← manganese → iron - ↑ Mn ↓ Tc periodic table General Name, Symbol, Number manganese, Mn, 25 Chemical series transition metals Group, Period, Block 7, 4, d Appearance silvery metallic Atomic mass 54.938045(5) g/mol Electron configuration [Ar] 3d5 4s2 Electrons per shell 2, 8, 13, 2 Physical properties Phase solid Density (near r.t.) 7.21 g·cm−3 Liquid density at m.p. 5.95 g·cm−3 Melting point 1519 K (1246 °C, 2 ...