Basic Information
Name: manganese
Symbol: cr
Classification: Manganese is a transition metal
color:gray-white
Atomic weight54.9380
state: solid
Melting Point: 1250 oC, 1523 K
Boiling Point: 2060 oC, 2333 K
Shells: 2,8,13,2
Electron configuration:[Ar] 3d5 4s2
Density @ 20oC: 7.43 g/cm3
Atomic volume: 7.4 cm3/mol
Structure: hcp: complex (cubic)
Hardness: 6.0 mohs