All chemical elements

Symbol

Tb

Atomic number

65

Chemical property

Lan­thanide

Origin o the name

Ytterby, Sweden

Period

6

Atomic weight (u)

158.92535

Atomic weight uncertainty (u)

0.00002

Density (g/cm³)

8.229

Melting point (K)

1629

Boiling point (K)

3503

Heat capacity (J/(g·K))

0.182

Electro-negativity

1.2

Abundance in earth's crust (mg/kg)

1.2