›› Physical and chemical properties of Hafnium

Atomic Number:72
Element Symbol:Hf
Element Name:Hafnium
Atomic Weight:178.49
Group Number:4
Group Name:none
Period Number:6
Ground State Configuration:[Xe] 4f14 5d2 6s2
Ground State Level:3F2
Standard State:Solid
Bond Length:312.7
Atomic Radius Empirical:155
Atomic Radius Calculated:208
Covalent Radius Empirical:150
First Ionization Energy:658.5
Pauling Electronegativity:1.3
Allred Rochow Electronegativity:1.23
Density Of Solid:13310
Molar Volume:13.44
Velocity Of Sound:3010
Youngs Modulus:78
Rigidity Modulus:30
Bulk Modulus:110
Poissons Ratio:0.37
Mineral Hardness:5.5
Brinell Hardness:1700
Vickers Hardness:1760
Electrical Resistivity:30
Melting Point:2233
Boiling Point:4603
Superconduction Temperature:-273.022
Thermal Conductivity:23
Coefficient Of Linear Expansion:5.9
Enthalpy Of Fusion:25.5
Enthalpy Of Vaporization:630
Enthalpy Of Atmization:621
Most Common Oxidation Numbers:4
Color:Grey steel
Discovered By:Dirk Coster and George Charles von Hevesy
Discovered At:Denmark
Discovered When:1923
Origin Of Name:From the Latin name Hafnia meaning Copenhagen

Calculate the molecular weight of Hafnium or molecular weight Hf.

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

››Compounds that contain Hafnium

Hafnium Tetrachloride  HfCl4
Hafnium Boride  HfB2
Hafnium Bromide  HfBr4
Hafnium Carbide  HfC
Hafnium Fluoride  HfF4
Hafnium Hydride  HfH2
Hafnium Iodide  HfI3
Hafnium Nitride  HfN
Hafnium Oxide  HfO2
Hafnium Phosphide  HfP
Hafnium Sulfate  Hf(SO4)2
Hafnium Sulfide  HfS2
Hafnium Selenide  HfSe2
Hafnium Orthosilicate  HfSiO4
Hafnium Silicide  HfSi2