›› Physical and chemical properties of Niobium

Atomic Number:41
Element Symbol:Nb
Element Name:Niobium
Atomic Weight:92.90638
Group Number:5
Group Name:none
Period Number:5
Block:d-block
Ground State Configuration:[Kr] 4d4 5s
Ground State Level:6D1/2
Standard State:Solid
Bond Length:285.8
Atomic Radius Empirical:145
Atomic Radius Calculated:198
Covalent Radius Empirical:137
Electron Affinity:86.1
First Ionization Energy:652.1
Pauling Electronegativity:1.6
Sanderson Electronegativity:1.42
Allred Rochow Electronegativity:1.23
Density Of Solid:8570
Molar Volume:10.83
Velocity Of Sound:3480
Youngs Modulus:105
Rigidity Modulus:38
Bulk Modulus:170
Poissons Ratio:0.40
Mineral Hardness:6.0
Brinell Hardness:736
Vickers Hardness:1320
Electrical Resistivity:15
Melting Point:2477
Boiling Point:4744
Superconduction Temperature:-263.9
Thermal Conductivity:54
Coefficient Of Linear Expansion:7.3
Enthalpy Of Fusion:26.8
Enthalpy Of Vaporization:690
Enthalpy Of Atmization:733
Most Common Oxidation Numbers:5
Color:Grey metallic
Classification:Metallic
Discovered By:Charles Hatchett
Discovered At:England
Discovered When:1801
Origin Of Name:From the Greek word Niobe meaning daughter of Tantalus (tantalum is closely related to niobium in the periodic table)

Calculate the molecular weight of Niobium or molecular weight Nb.

Also see the full list of chemical elements and atomic weights.


››Compounds that contain Niobium

Niobium Pentachloride  NbCl5
Barium Niobate  Ba(NbO3)2
Bismuth(III) Orthoniobate  BiNbO4
Cadmium Niobate  Cd2Nb2O7
Erbium(III) Niobate  ErNbO4
Europium(II) Niobate  Eu(NbO3)2
Potassium Niobate  KNbO3
Lanthanum Niobate  LaNbO4
Lithium Niobate  LiNbO3
Sodium Niobate  NaNbO3
Niobium(III) Bromide  NbBr3
Niobium(IV) Bromide  NbBr4
Niobium(V) Bromide  NbBr5
Niobium(IV) Carbide  NbC
Niobium(III) Chloride  NbCl3
Niobium(IV) Chloride  NbCl4
Niobium(III) Fluoride  NbF3
Niobium(IV) Fluoride  NbF4
Niobium(V) Fluoride  NbF5
Niobium(III) Iodide  NbI3
Niobium(IV) Iodide  NbI4
Niobium(V) Iodide  NbI5
Niobium(III) Nitride  NbN
Niobium(II) Oxide  NbO
Niobium(IV) Oxide  NbO2
Niobium(IV) Sulfide  NbS2
Niobium(IV) Selenide  NbSe2
Niobium(VI) Selenide  NbSe3
Niobium(IV) Telluride  NbTe2
Niobium(V) Oxide  Nb2O5
Lead(II) Niobate  Pb(NbO3)2
Antimony Orthoniobate  SbNbO4
Thulium(II) Niobate  Tm(NbO3)2