| Attribute | Value |
|---|---|
| Symbol | Nb |
| Standard state | Solid |
| Atomic mass | 92.90637 u |
| Electron configuration | [Kr]5s¹4d⁴ |
| Oxidation states |
|
| Electronegativity (pauling scale) | 1.6 |
| Atomic radius (van der waals) | 207 pm |
| Ionization energy | 6.759 eV |
| Electron affinity | 0.893 eV |
| Melting point | 2750 K |
| Boiling point | 5017 K |
| Density | 8.57 g/cm³ |
| Atomic number | 41 |
| Group name | Transition metal |
| Discovered | 1801 year |