Cobalt

Transition metal

Symbol: Co

Atomic Number: 27

Standard State: Solid

Atomic Mass: 58.93319

Electron Configuration: [Ar]4s2 3d7

Electronegativity: 1.88

Atomic Radius: 192

Ionization Energy: 7.881

Melting Point: 1768

Boiling Point: 3200

Density: 8.86

Year Discovered: 1735