›› Physical and chemical properties of Thorium

Atomic Number:90
Element Symbol:Th
Element Name:Thorium
Atomic Weight:232.0381
Group Name:Actinoid
Period Number:7 (actinoid)
Ground State Configuration:[Rn] 6d2 7s2
Ground State Level:3F2
Standard State:Solid
Bond Length:359.5
Atomic Radius Empirical:180
First Ionization Energy:587
Pauling Electronegativity:1.3
Allred Rochow Electronegativity:1.11
Density Of Solid:11724
Molar Volume:19.80
Velocity Of Sound:2490
Youngs Modulus:79
Rigidity Modulus:31
Bulk Modulus:54
Poissons Ratio:0.27
Mineral Hardness:3.0
Brinell Hardness:400
Vickers Hardness:350
Electrical Resistivity:15
Melting Point:1842
Boiling Point:4820
Superconduction Temperature:-271.77
Thermal Conductivity:54
Coefficient Of Linear Expansion:11.0
Enthalpy Of Fusion:16
Enthalpy Of Vaporization:530
Enthalpy Of Atmization:598
Most Common Oxidation Numbers:4
Color:Silvery white
Discovered By:Jons Berzelius
Discovered At:Sweden
Discovered When:1829
Origin Of Name:Named after Thor, the mythological Scandinavian god of war

Calculate the molecular weight of Thorium or molecular weight Th.

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

››Compounds that contain Thorium

Thorium Dioxide  ThO2
Thorium(IV) Bromide  ThBr4
Thorium(IV) Carbide  ThC
Thorium(II) Carbonate  Th(CO3)2
Thorium(IV) Chloride  ThCl4
Thorium(III) Fluoride  ThF3
Thorium(IV) Fluoride  ThF4
Thorium(II) Hydride  ThH2
Thorium(II) Iodide  ThI2
Thorium(III) Iodide  ThI3
Thorium(IV) Iodide  ThI4
Thorium(III) Nitride  ThN
Thorium(IV) Nitrate  Th(NO3)4
Thorium(II) Sulfide  ThS
Thorium(IV) Sulfide  ThS2
Thorium(IV) Selenide  ThSe2
Thorium(IV) Orthosilicate  ThSiO4
Thorium(IV) Silicide  ThSi2
Thorium(III) Sulfide  Th2S3