All chemical elements

Symbol

Nb

Atomic number

41

Chemical property

Transition metal

Origin o the name

Niobe, daughter of king Tantalus from Greek mythology

Group

5

Period

5

Atomic weight (u)

92.90637

Atomic weight uncertainty (u)

0.00002

Density (g/cm³)

8.57

Melting point (K)

2750

Boiling point (K)

5017

Heat capacity (J/(g·K))

0.265

Electro-negativity

1.6

Abundance in earth's crust (mg/kg)

20