Properties of Nb:

Property Name Value Unit Comments Reference
ΔH interface M in O (Miedema) -951 (kJmol-1) 13823
ΔH interface O in M (Miedema) -409 (kJmol-1) 13823
ΔH interface S in M -177 (kJmol-1) 13823
Δinterface M in S (Miedema) -354 (kJmol-1) 13823
γ-free electron to specific heat 7,79 (mJmol-1K-2) 13823
Atomic concentration 5,56 (1023 m-3) 13823
Atomic electron scattering factor at 0.5 1,92 13823
Atomic environment number (Villars, Daams) 14 13823
Atomic number start counting left top, left-right sequence 41 13823
Atomic weight 92,906 (10-3 kg) 13823
Boiling temperature 5015 (K) 13823
Boiling temperature 3573 (K) 19178
Boiling temperature 4973 (K) 19178
Boiling temperature 5017 (K) 19178
Bulk modulus 170,3 (GPa) 13823
Charge nuclear effective (Clementi) 6,7 13823
Chemical potential (Miedema) 4,05 13823
Compression modulus 1,702 (GPa) 13823
Conductivity electrical 6,25 (104 Ohm-1cm-1) 13823
Conductivity thermal 53,7 (Jmol-1K-1) 13823
Debye temperature 275 (K) 13823
Density 8570 (kgm-3) 13823
Distance to core electron (Schubert) 0,95 (A) 13823
Distance to valence electron (Schubert) 1,75 (A) 13823
Electrochemical weight equivalent 0,19256 (mgK-1) 13823
Electron affinity 86,2 (kJmol-1) 13823
Electronegativity (Alfred-Rochow) 1,23 13823
Electronegativity (Martynov&Batsanov) 2,03 13823
Electronegativity (Pauling) 1,6 13823
Electronegativity absolute 4 13823
Energy cohesive (Brewer) 7,57 (Jmol-1) 13823
Energy of ionization (first) 663,8 (kJmol-1) 13823
Energy of ionization (second) 1382 (kJmol-1) 13823
Energy of ionization (third) 2416 (kJmol-1) 13823
Enthalpy of atomization 725,9 (kJmol-1) 13823
Enthalpy of melting 26,8 (kJmol-1) 13823
Enthalpy of melting 30,421 (kJmol-1) 23289
Enthalpy of surface (Miedema) 186 (kJmol-1) 13823
Enthalpy of vacancies (Miedema) 185 (kJmol-1) 13823
Enthalpy of vaporization 694 (kJmol-1) 19178
Enthalpy of vaporization 690 (kJmol-1) 19178
Enthalpy of vaporization 697 (kJmol-1) 19178
Enthalpy of vaporization 680,19 (kJmol-1) 13823
Entropy of solid 36,28 (Jmol-1K-1) 23289
Entropy of solid 36,55076 (Jmol-1K-1) 13823
Group number 5 13823
Hardness (Brinell) 2450 [MPa] 13823
Linear thermal expansion coefficient 7,3 (10-6K-1) 13823
Magnetic frequency of nuclei 24,442 13823
Magnetic resonance 10,4048 (MHz) 13823
Magnetic susceptibility 0,0000000276 (m3kg-1) 13823
Mass attenuation coefficient FeKα 284 (cm2g-1) 13823
Mass attenuation coefficient for CrKα 441 (cm2g-1) 13823
Mass attenuation coefficient for CuKα 153 (cm2g-1) 13823
Mass attenuation coefficient for MoKα 17,1 (cm2g-1) 13823
Melting temperature 2741 (K) 13823
Mendeleev chemists sequence 58 13823
Mendeleev d-t start left 50 13823
Mendeleev d-t start right 54 13823
Mendeleev H d-t start left 49 13823
Mendeleev H d-t start right 55 13823
Mendeleev H t-d start left 49 13823
Mendeleev H t-d start right 55 13823
Mendeleev Pettifor 53 13823
Mendeleev Pettifor regular 53 13823
Mendeleev t-d start left 50 13823
Mendeleev t-d start right 54 13823
Modulus of rigidity 37,5 (GPa) 13823
Molar heat capacity 24,6 (Jmol-1K-1) 13823
Molar heat capacity 24,48 (Jmol-1K-1) 23289
Moment nuclear magnetic 6,144 (mu) 13823
Nuclear charge effective (Slater) 3,3 13823
nWS^(1/3) (Miedema) 1,64 (a.u.-1/3) 13823
Oxidation state (first) 3 13823
Periodic number start counting bottom right, right-left sequence 63 13823
Periodic number start counting left bottom, left-right sequence 54 13823
Periodic number start counting top right, right-left sequence 50 13823
Poisson's ratio 0,387 13823
Quantum number 5 13823
Radii covalent 134 (pm) 13823
Radii metal (Waber) 1,468 (A) 13823
Radii pseudo-potential (Zunger) 2,76 13823
Resistivity electrical 12,5 (10-8 Ohmm) 13823
Sound velocity 3480 (ms-1) 13823
Spectral lines no 450 13823
Spin nuclei 4,5 (h) 13823
Surface tension at Tm 2700 (mJm-2) 13823
Thermal neutron capture cross section 1,15 (barns) 13823
V^(2/3) (Miedema) 4,89 (cm2) 13823
Valence electron number 5 13823
Vapour pressure at Tm 755 (Nm-2) 13823
Volume of atom (Villars, Daams) 1,807 (10-2 nm3) 13823
Work function 4,3 (eV) 13823
Young's modulus 104,9 (GPa) 13823

Radii Ionic properties of Nb:

Property Name Charge CN Value Unit Comments Reference
Radii ionic (Bokii & Belov) 4 0,67 (Å) 13824
Radii ionic (Bokii & Belov) 5 0,66 (Å) 13824
Radii ionic (Goldsmidt) 5 0,69 (Å) 13824
Radii ionic (Pauling) 4 0,67 (Å) 13824
Radii ionic (Pauling) 5 0,7 (Å) 13824
Radii ionic (Yagoda) 4 0,77 (Å) 13824
Radii ionic (Yagoda) 5 0,7 (Å) 13824
Radii ionic (Shannon) 3 6 0,72 (Å) 13826
Radii ionic (Shannon) 4 6 0,68 (Å) 13826
Radii ionic (Shannon) 5 4 0,48 (Å) 13826
Radii ionic (Shannon) 5 6 0,64 (Å) 13826
Radii ionic (Shannon) 5 7 0,69 (Å) 13826
Radii ionic (Shannon) 5 8 0,74 (Å) 13826
Radii ionic (Shannon) 4 8 0,79 (Å) 13826
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