All chemical elements

Symbol

Ru

Atomic number

44

Chemical property

Transition metal

Origin o the name

Ruthenia, the New Latin name for Russia

Group

8

Period

5

Atomic weight (u)

101.07

Atomic weight uncertainty (u)

0.02

Density (g/cm³)

12.37

Melting point (K)

2607

Boiling point (K)

4423

Heat capacity (J/(g·K))

0.238

Electro-negativity

2.2

Abundance in earth's crust (mg/kg)

0.001