All chemical elements

Symbol

Co

Atomic number

27

Chemical property

Transition metal

Origin o the name

the German word Kobold, 'goblin'

Group

9

Period

4

Atomic weight (u)

58.933194

Atomic weight uncertainty (u)

0.000004

Density (g/cm³)

8.86

Melting point (K)

1768

Boiling point (K)

3200

Heat capacity (J/(g·K))

0.421

Electro-negativity

1.88

Abundance in earth's crust (mg/kg)

25