| Abundances of the elements | niobium |
| Abundance in carbonaceous meteorites (by weight) | niobium |
| Abundance in carbonaceous meteorites (by atoms) | niobium |
| Abundance in Earth's crust (by weight) | niobium |
| Abundance in Earth's crust (by atoms) | niobium |
| Abundance in iron meteorites (by weight) | niobium |
| Abundance in iron meteorites (by atoms) | niobium |
| Abundance in oceans (by weight) | niobium |
| Abundance in oceans (by atoms) | niobium |
| Abundance in stream water (by weight) | niobium |
| Abundance in stream water (by atoms) | niobium |
| Abundance in the sun (by weight) | niobium |
| Abundance in the sun (by atoms) | niobium |
| Abundance in the universe (by weight) | niobium |
| Abundance in the universe (by atoms) | niobium |
| Abundances in humans (by weight) | niobium |
| Abundances in humans (by atoms) | niobium |
| Atomic radii (Clementi) | niobium |
| Atomc radii (calculated) | niobium |
| Atomic radius (empirical) | niobium |
| Atomic number | niobium |
| Atomic spectra | niobium |
| Biology | niobium |
| Block in periodic table | niobium |
| Boiling point | niobium |
| Boiling point of highest fluoride | niobium |
| Boiling point of hydride | niobium |
| Bond enthalpy (single bond) | niobium |
| Bond enthalpy of diatomic M-Al molecules | niobium |
| Bond enthalpy of diatomic M-Ar molecules | niobium |
| Bond enthalpy of diatomic M-As molecules | niobium |
| Bond enthalpy of diatomic M-B molecules | niobium |
| Bond enthalpy of diatomic M-Ba molecules | niobium |
| Bond enthalpy of diatomic M-Be molecules | niobium |
| Bond enthalpy of diatomic M-Bi molecules | niobium |
| Bond enthalpy of diatomic M-Br molecules | niobium |
| Bond enthalpy of diatomic M-C molecules | niobium |
| Bond enthalpy of diatomic M-Ca molecules | niobium |
| Bond enthalpy of diatomic M-Cl molecules | niobium |
| Bond enthalpy of diatomic M-Cs molecules | niobium |
| Bond enthalpy of diatomic M-F molecules | niobium |
| Bond enthalpy of diatomic M-Fr molecules | niobium |
| Bond enthalpy of diatomic M-Ga molecules | niobium |
| Bond enthalpy of diatomic M-Ge molecules | niobium |
| Bond enthalpy of diatomic M-H molecules | niobium |
| Bond enthalpy of diatomic M-He molecules | niobium |
| Bond enthalpy of diatomic M-I molecules | niobium |
| Bond enthalpy of diatomic M-In molecules | niobium |
| Bond enthalpy of diatomic M-K molecules | niobium |
| Bond enthalpy of diatomic M-Kr molecules | niobium |
| Bond enthalpy of diatomic M-Li molecules | niobium |
| Bond enthalpy of diatomic M-Mg molecules | niobium |
| Bond enthalpy of diatomic M-N molecules | niobium |
| Bond enthalpy of diatomic M-Na molecules | niobium |
| Bond enthalpy of diatomic M-Ne molecules | niobium |
| Bond enthalpy of diatomic M-O molecules | niobium |
| Bond enthalpy of diatomic M-P molecules | niobium |
| Bond enthalpy of diatomic M-Pb molecules | niobium |
| Bond enthalpy of diatomic M-Ra molecules | niobium |
| Bond enthalpy of diatomic M-Rb molecules | niobium |
| Bond enthalpy of diatomic M-Rn molecules | niobium |
| Bond enthalpy of diatomic M-S molecules | niobium |
| Bond enthalpy of diatomic M-Sb molecules | niobium |
| Bond enthalpy of diatomic M-Se molecules | niobium |
| Bond enthalpy of diatomic M-Si molecules | niobium |
| Bond enthalpy of diatomic M-Sn molecules | niobium |
| Bond enthalpy of diatomic M-Sr molecules | niobium |
| Bond enthalpy of diatomic M-Te molecules | niobium |
| Bond enthalpy of diatomic M-Tl molecules | niobium |
| Bond enthalpy of diatomic M-Xe molecules | niobium |
| Bond enthalpy of diatomic molecules | niobium |
| Bond enthalpy of homodinuclear molecules | niobium |
| Bond length in element | niobium |
| Bulk modulus | niobium |
| CAS Registry number | niobium |
| Chemistry | niobium |
| Classification | niobium |
| Colour | niobium |
| Common oxidation numbers | niobium |
| compounds | niobium |
| contents | niobium |
| Covalent radius | niobium |
| covalent radii revisited (2008 values) | niobium |
| Covalent radii (molecular single bond) | niobium |
| Covalent radii (molecular double bond) | niobium |
| Covalent radii (molecular triple bond) | niobium |
| Critical temperature | niobium |
| Crystal structure | niobium |
| Density of solid | niobium |
| Description | niobium |
| Discovery | niobium |
| Discovery | niobium |
| Discovery | niobium |
| Effective nuclear charge (Clementi) | niobium |
| Effective nuclear charge (Clementi) - 1s | niobium |
| Effective nuclear charge (Clementi) - 2p | niobium |
| Effective nuclear charge (Clementi) - 2s | niobium |
| Effective nuclear charge (Clementi) - 3d | niobium |
| Effective nuclear charge (Clementi) - 3p | niobium |
| Effective nuclear charge (Clementi) - 3s | niobium |
| Effective nuclear charge (Clementi) - 4d | niobium |
| Effective nuclear charge (Clementi) - 4f | niobium |
| Effective nuclear charge (Clementi) - 4p | niobium |
| Effective nuclear charge (Clementi) - 4s | niobium |
| Effective nuclear charge (Clementi) - 5d | niobium |
| Effective nuclear charge (Clementi) - 5p | niobium |
| Effective nuclear charge (Clementi) - 5s | niobium |
| Effective nuclear charge (Clementi) - 6p | niobium |
| Effective nuclear charge (Clementi) - 6s | niobium |
| Electrical resistivity | niobium |
| Electron affinity | niobium |
| Electron binding energies | niobium |
| Electron binding energies (K) | niobium |
| Electron binding energies (L-I) | niobium |
| Electron binding energies (L-II) | niobium |
| Electron binding energies (L-III) | niobium |
| Electron binding energies (M-I) | niobium |
| Electron binding energies (M-II) | niobium |
| Electron binding energies (M-III) | niobium |
| Electron binding energies (M-IV) | niobium |
| Electron binding energies (M-V) | niobium |
| Electron binding energies (N-I) | niobium |
| Electron binding energies (N-II) | niobium |
| Electron binding energies (N-III) | niobium |
| Electron binding energies (N-IV) | niobium |
| Electron binding energies (N-V) | niobium |
| Electron binding energies (N-VI) | niobium |
| Electron binding energies (N-VII) | niobium |
| Electron binding energies (O-I) | niobium |
| Electron binding energies (O-II) | niobium |
| Electron binding energies (O-III) | niobium |
| Electron binding energies (O-IV) | niobium |
| Electron binding energies (O-V) | niobium |
| Electron binding energies (P-I) | niobium |
| Electron binding energies (P-II) | niobium |
| Electron binding energies (P-III) | niobium |
| Electron shell structure | niobium |
| electronegativity | niobium |
| Electronegativity (Allen) | niobium |
| Electronegativity (Allred-Rochow) | niobium |
| Electronegativity (Mulliken-Jaffe - s) | niobium |
| Electronegativity (Mulliken-Jaffe - sp) | niobium |
| Electronegativity (Mulliken-Jaffe -sp2) | niobium |
| Electronegativity (Mulliken-Jaffe -sp3) | niobium |
| Electronegativity (Mulliken-Jaffe) | niobium |
| Electronegativity (Mulliken-Jaffe) p-orbital | niobium |
| Electronegativity (Pauling) | niobium |
| Electronegativity (Sanderson) | niobium |
| Electronic configuration | niobium |
| Element names and symbols | niobium |
| Element popularity | niobium |
| Enthalpy of atomization | niobium |
| Enthalpy of fusion | niobium |
| Enthalpy of vaporization | niobium |
| Geology | niobium |
| Group Name | niobium |
| Group numbers | niobium |
| Hardness - Brinell | niobium |
| Hardness - Mineralogical | niobium |
| Hardness - Vickers | niobium |
| Health hazards | niobium |
| History of the element | niobium |
| Hydration enthalpy for metal ion M[I] | niobium |
| Hydration enthalpy for metal ion M[II] | niobium |
| Hydration enthalpy for metal ion M[III] | niobium |
| Hydration enthalpy for metal ion M[IV] | niobium |
| Hydrolysis constant of hydrated metal ion M(I) | niobium |
| Hydrolysis constant of hydrated metal ion M(II) | niobium |
| Hydrolysis constant of hydrated metal ion M(III) | niobium |
| Hydrolysis constant of hydrated metal ion M(IV) | niobium |
| Ionic radii (Shannon) | niobium |
| Ionic radii (Shannon) for 8-coordinate M(-I) ion | niobium |
| Ionic radii (Shannon) for 8-coordinate M(-II) ion | niobium |
| Ionic radii (Shannon) for 8-coordinate M(I) ion | niobium |
| Ionic radii (Shannon) for 8-coordinate M(II) ion | niobium |
| Ionic radii (Shannon) for 8-coordinate M(III) ion | niobium |
| Ionic radii (Shannon) for 8-coordinate M(IV) ion | niobium |
| Ionic radii (Shannon) for 8-coordinate M(V) ion | niobium |
| Ionic radii (Shannon) for 8-coordinate M(VI) ion | niobium |
| Ionic radii (Shannon) for octahedral M(-III) ion | niobium |
| Ionic radii (Shannon) for octahedral M(-II) ion | niobium |
| Ionic radii (Shannon) for octahedral M(-I) ion | niobium |
| Ionic radii (Shannon) for octahedral M(I) ion | niobium |
| Ionic radii (Shannon): low spin octahedral M(II) ion | niobium |
| Ionic radii (Shannon): high spin octahedral M(II) ion | niobium |
| Ionic radii (Shannon): low spin octahedral M(III) ion | niobium |
| Ionic radii (Shannon): high spin octahedral M(III) ion | niobium |
| Ionic radii (Shannon): low spin octahedral M(IV) ion | niobium |
| Ionic radii (Shannon): high spin octahedral M(IV) ion | niobium |
| Ionic radii (Shannon) for octahedral M(V) ion | niobium |
| Ionic radii (Shannon) for octahedral M(VI) ion | niobium |
| Ionic radii (Shannon) for octahedral M(VII) ion | niobium |
| Ionic radii (Shannon) for octahedral M(VIII) ion | niobium |
| Ionic radii (Shannon) for square planar M(I) ion | niobium |
| Ionic radii (Shannon) for square planar M(II) ion | niobium |
| Ionic radii (Shannon) for square planar M(III) ion | niobium |
| Ionic radii (Shannon) for tetrahedral M(-III) ion | niobium |
| Ionic radii (Shannon) for tetrahedral M(-I) ion | niobium |
| Ionic radii (Shannon) for tetrahedral M(-II) ion | niobium |
| Ionic radii (Shannon) for tetrahedral M(I) ion | niobium |
| Ionic radii (Shannon) for tetrahedral M(II) ion | niobium |
| Ionic radii (Shannon) for tetrahedral M(III) ion | niobium |
| Ionic radii (Shannon) for tetrahedral M(IV) ion | niobium |
| Ionic radii (Shannon) for tetrahedral M(V) ion | niobium |
| Ionic radii (Shannon) for tetrahedral M(VI) ion | niobium |
| Ionic radii (Shannon) for tetrahedral M(VII) ion | niobium |
| Ionic radii (Shannon) for tetrahedral M(VIII) ion | niobium |
| Ionic radius (Pauling) | niobium |
| Ionic radius (Pauling) for M(-IV) ion | niobium |
| Ionic radius (Pauling) for M(-III) ion | niobium |
| Ionic radius (Pauling) for M(-II) ion | niobium |
| Ionic radius (Pauling) for M(-I) ion | niobium |
| Ionic radius (Pauling) for M(I) ion | niobium |
| Ionic radius (Pauling) for M(II) ion | niobium |
| Ionic radius (Pauling) for M(III) ion | niobium |
| Ionic radius (Pauling) for M(IV) ion | niobium |
| Ionic radius (Pauling) for M(V) ion | niobium |
| Ionic radius (Pauling) for M(VI) ion | niobium |
| Ionic radius (Pauling) for M(VII) ion | niobium |
| Ionization energies | niobium |
| Ionization energy: 1st | niobium |
| Ionization energy: 2nd | niobium |
| Ionization energy: 3rd | niobium |
| Ionization energy: 4th | niobium |
| Ionization energy: 5th | niobium |
| Ionization energy: 6th | niobium |
| Ionization energy: 7th | niobium |
| Ionization energy: 8th | niobium |
| Ionization energy: 9th | niobium |
| Ionization energy: 10th | niobium |
| Ionization energy: 11th | niobium |
| Ionization energy: 12th | niobium |
| Ionization energy: 13th | niobium |
| Ionization energy: 14th | niobium |
| Ionization energy: 15th | niobium |
| Ionization energy: 16th | niobium |
| Ionization energy: 17th | niobium |
| Ionization energy: 18th | niobium |
| Ionization energy: 19th | niobium |
| Ionization energy: 20th | niobium |
| Ionization energy: 21st | niobium |
| Isolation | niobium |
| Isotopes | niobium |
| Lattice energies | niobium |
| Lattice energies (calculated) for MH | niobium |
| Lattice energies (calculated) for MH2 | niobium |
| Lattice energies (calculated) for MH3 | niobium |
| Lattice energies (calculated) for MH4 | niobium |
| Lattice energies (calculated) for MF | niobium |
| Lattice energies (calculated) for MF2 | niobium |
| Lattice energies (calculated) for MF3 | niobium |
| Lattice energies (calculated) for MF4 | niobium |
| Lattice energies (calculated) for MCl | niobium |
| Lattice energies (calculated) for MCl2 | niobium |
| Lattice energies (calculated) for MCl3 | niobium |
| Lattice energies (calculated) for MCl4 | niobium |
| Lattice energies (calculated) for MBr | niobium |
| Lattice energies (calculated) for MBr2 | niobium |
| Lattice energies (calculated) for MBr3 | niobium |
| Lattice energies (calculated) for MBr4 | niobium |
| Lattice energies (calculated) for MI | niobium |
| Lattice energies (calculated) for MI2 | niobium |
| Lattice energies (calculated) for MI3 | niobium |
| Lattice energies (calculated) for MI4 | niobium |
| Lattice energies (calculated) for M2O | niobium |
| Lattice energies (calculated) for MO | niobium |
| Lattice energies (calculated) for M2O2 | niobium |
| Lattice energies (calculated) for M2O3 | niobium |
| Lattice energies (calculated) for MO2 | niobium |
| Lattice energies (calculated) for MO3 | niobium |
| Lattice energies (thermochemical cycle) for MH | niobium |
| Lattice energies (thermochemical cycle) for MH2 | niobium |
| Lattice energies (thermochemical cycle) for MH3 | niobium |
| Lattice energies (thermochemical cycle) for MH4 | niobium |
| Lattice energies (thermochemical cycle) for MF | niobium |
| Lattice energies (thermochemical cycle) for MF2 | niobium |
| Lattice energies (thermochemical cycle) for MF3 | niobium |
| Lattice energies (thermochemical cycle) for MF4 | niobium |
| Lattice energies (thermochemical cycle) for MCl | niobium |
| Lattice energies (thermochemical cycle) for MCl2 | niobium |
| Lattice energies (thermochemical cycle) for MCl3 | niobium |
| Lattice energies (thermochemical cycle) for MCl4 | niobium |
| Lattice energies (thermochemical cycle) for MBr | niobium |
| Lattice energies (thermochemical cycle) for MBr2 | niobium |
| Lattice energies (thermochemical cycle) for MBr3 | niobium |
| Lattice energies (thermochemical cycle) for MBr4 | niobium |
| Lattice energies (thermochemical cycle) for MI | niobium |
| Lattice energies (thermochemical cycle) for MI2 | niobium |
| Lattice energies (thermochemical cycle) for MI3 | niobium |
| Lattice energies (thermochemical cycle) for MI4 | niobium |
| Lattice energies (thermochemical cycle) for M2O | niobium |
| Lattice energies (thermochemical cycle) for MO | niobium |
| Lattice energies (thermochemical cycle) for M2O2 | niobium |
| Lattice energies (thermochemical cycle) for M2O3 | niobium |
| Lattice energies (thermochemical cycle) for MO2 | niobium |
| Lattice energies (thermochemical cycle) for MO3 | niobium |
| Linear expansion coefficient | niobium |
| Liquid Range | niobium |
| Meaning of name | niobium |
| Melting point | niobium |
| Melting point of the highest fluoride | niobium |
| Melting point of the hydride | niobium |
| Menu to displays of periodic properties | niobium |
| Molar volume | niobium |
| NMR data | niobium |
| Orbital properties | niobium |
| Period numbers | niobium |
| Poisson's ratio | niobium |
| Properties of some compounds | niobium |
| Radius - metallic (12) | niobium |
| Reactions of the elements | niobium |
| Reduction potential of hydrated M(I) ions | niobium |
| Reduction potential of hydrated M(II) ions | niobium |
| Reduction potential of hydrated M(III) ions | niobium |
| Reduction potential of hydrated M(IV) ions | niobium |
| Reflectivity | niobium |
| Refractive index | niobium |
| Rigidity modulus | niobium |
| Single bond enthalpy in highest bromide | niobium |
| Single bond enthalpy in highest chloride | niobium |
| Single bond enthalpy in highest fluoride | niobium |
| Single bond enthalpy in highest iodide | niobium |
| Standard atomic weights | niobium |
| standard reduction potentials | niobium |
| Standard state | niobium |
| Superconductivity temperature | niobium |
| Term symbol | niobium |
| Thermal conductivity | niobium |
| thermochemistry | niobium |
| Thermodynamic properties | niobium |
| Total mass in 70 kg human | niobium |
| Uses | niobium |
| valence orbital R(max) | niobium |
| valence s-orbital R(max) | niobium |
| valence p-orbital R(max) | niobium |
| valence d-orbital R(max) | niobium |
| valence f-orbital R(max) | niobium |
| valence s-orbital R(max) | niobium |
| valence p-orbital R(max) | niobium |
| valence d-orbital R(max) | niobium |
| valence f-orbital R(max) | niobium |
| Van der Waals radius | niobium |
| Velocity of sound | niobium |
| X-ray mass absorption coefficients | niobium |
| X-ray mass absorption coefficients (Ag-Kα) | niobium |
| X-ray mass absorption coefficients (Co-Kα) | niobium |
| X-ray mass absorption coefficients (Cr-Kα) | niobium |
| X-ray mass absorption coefficients (Cu-Kα) | niobium |
| X-ray mass absorption coefficients (Fe-Kα) | niobium |
| X-ray mass absorption coefficients (Mo-Kα) | niobium |
| X-ray mass absorption coefficients (Ni-Kα) | niobium |
| X-ray mass absorption coefficients (W-Lα) | niobium |
| Young's modulus | niobium |
