All chemical elements

Symbol

Hf

Atomic number

72

Chemical property

Transition metal

Origin o the name

Hafnia, the New Latin name for Copenhagen

Group

4

Period

6

Atomic weight (u)

178.49

Atomic weight uncertainty (u)

0.02

Density (g/cm³)

13.31

Melting point (K)

2506

Boiling point (K)

4876

Heat capacity (J/(g·K))

0.144

Electro-negativity

1.3

Abundance in earth's crust (mg/kg)

3