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Nb
Niobium
#41 · Transition Metal
| Mass | 92.906 u |
| Density | 8.57 g/cm³ |
| Melting | 2750.0 K |
| Boiling | 5017.0 K |
| Electronegativity | 1.6 |
| Ionization Energy | 652.1 kJ/mol |
| Atomic Radius | 146.0 pm |
| Block | d-block |
| State (RT) | Solid |
| Config | [Kr] 4d4 5s1 |