Niobium
Transition metal| Atomic number | 41 |
|---|---|
| Category | Transition metal |
| Atomic mass | 92.906 |
| Electron configuration | [Kr]4d⁴ 5s¹ |
| Oxidation states | +3, +5 |
| Electronegativity | 1.6 |
| Melting point | 2,477 °C |
| Boiling point | 4,744 °C |
| Density | 8.57 g/cm³ |
| Crystal structure | Body-centred cubic |
| Group | 5 |
| Period | 5 |
| Block | d |
| Discovered | 1,801 |
| Crustal abundance | 20 ppm |
