| Element (Atom) Name | Niobium |
| Symbol | Nb |
| Physical state at room temperature | Solid |
| Element Classification | Metal |
| Group Name | None |
| Period Number (Periodic table) | 5 |
| Group number (Periodic table) | 5 |
| Atomic number | 41 |
| Atomic weight | 92.90637 (Ref: Jlab-ele041, ciaaw-niobium, Nist-41) 92.91 (Ref: Lanl-41) |
| Atomic Radius | 207 pm (Van der Waals) (Ref: Lanl-41) |
| Density | 8.57 g/cm3 (Ref: Jlab-ele041) |
| Melting point | 2477°C (Ref: Jlab-ele041, Lanl-41) |
| Boiling point | 4744°C (Ref: Jlab-ele041, Lanl-41) |
| Electron shell configuration | 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d4 5s1 |
| Oxidation States | +5, +3 (Ref: Jlab-ele041) 5, 4, 3, 2, 1, −1, −3 (a mildly acidic oxide) (Ref: Lanl-41) |
| Ionization Energy | 6.759 eV (Ref: Jlab-ele041) 6.75885 eV (Ref: Nist-41) |
| Number of Stable Isotopes | 1 |
| InChI | InChI=1S/Nb (Ref: Pubchem-41) |
| InChI Key | GUCVJGMIXFAOAE-UHFFFAOYSA-N (Ref: Pubchem-41) |
| Remarks |
REFERENCES
- Jlab-ele041: https://education.jlab.org/itselemental/ele041.html
- Lanl-41: https://periodic.lanl.gov/41.shtml
- ciaaw-niobium: https://www.ciaaw.org/niobium.htm
- Nist-41 : https://physics.nist.gov/cgi-bin/Elements/elInfo.pl?element=41
- Pubchem-41: https://pubchem.ncbi.nlm.nih.gov/element/41
- science.co.il: https://www.science.co.il/elements/
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