All chemical elements

Symbol

Th

Atomic number

90

Chemical property

Actinide

Origin o the name

Thor, the Scandinavian god of thunder

Period

7

Atomic weight (u)

232.0377

Atomic weight uncertainty (u)

0.0004

Density (g/cm³)

11.72

Melting point (K)

2115

Boiling point (K)

5061

Heat capacity (J/(g·K))

0.113

Electro-negativity

1.3

Abundance in earth's crust (mg/kg)

9.6