Niobium
Transition Metal
Niobium (Nb) is a chemical element with atomic number 41, classified as a transition metal. At room temperature it is a solid. It was discovered in 1801 by Charles Hatchett.
Properties
- Atomic number
- 41
- Atomic mass
- 92.906 u
- Category
- Transition Metal
- Group
- 5
- Period
- 5
- Block
- d-block
- Electron configuration
- [Kr] 4d⁴ 5s¹
- Phase at STP
- Solid
- Density
- 8.57 g/cm³
- Melting point
- 2750 K (2476.8 °C)
- Boiling point
- 5017 K (4743.9 °C)
- Electronegativity
- 1.6
- Atomic radius
- 198 pm
- Ionization energy
- 6.759 eV
- Discovery
- 1801 · Charles Hatchett
Common uses
Superconducting magnets, jet engines, jewelry, MRI machines
Did you know?
Becomes superconducting at low temperatures and strengthens steel.