All chemical elements

Symbol

Pm

Atomic number

61

Chemical property

Lan­thanide

Origin o the name

Prometheus of Greek mythology who stole fire from the Gods and gave it to humans

Period

6

Density (g/cm³)

7.26

Melting point (K)

1315

Boiling point (K)

3273

Electro-negativity

1.13

Abundance in earth's crust (mg/kg)

0