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Nb |
Niobium |
Nb | |
Atomic number |
|
41 | Atomic weight | 92.906382 amu | Stable and very long lived isotopes | 93Nb: 100% | Electronic configuration | 1s22s22p63s23p63d104s24p65s14d4 | Sample compounds | Nb2O5
| Density |
8.570 g/cm3 (STP) |
Melting | 2468 °C |
Boiling | 4927 °C |
Covalent radius | 1.37 Å |
Van der Waals radius | Å |
Ionic radius | 0.69 Å |
First ionization potential | 6.758 eV = 54511 cm-1 = 652.1 kJ/mol
|
Electron affinity | -0.891 eV = -7189 cm-1 = -86.0 kJ/mol |
Wikipedia article about Niobium |
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