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Thorium

Density 11.7 g/cm3
Thermal Conductivity @ 25oC 0.093 cal/(s/cm/oC)
Specific Heat @ 25oC 0.034 cal/g
Heat of Fusion 4.6 kcal/g-atom
Latent Heat of Fusion kcal/g-mole
Heat of Vaporization 140 kcal/g-atom
Latent Heat of Vaporization kcal/g-atom
Atomic Volume 19.9 W/D
First Ionizaton Energy kcal/g-mole
Electronegativity 1.3 Paulings
Covalent Radius 1.65 Angstroms
Brinell Hardness  
Mohs Hardness @ 20oC  
Vickers Hardness @ 20oC  
Linear CTE @ 20oC 12.5 x 10-6
Electrical Resistivity @ 298oK 14 mohm/cm
Electrical Conductance mohm-1
Crystal Structure Cubic, face centered
Curie Temperature oC
Modulus of Elasticity kg/mm2
Youngs Modulus 10.5 x 106 psi
Thermal Neutron Cross-section barnes/atom
Magnetic Moment magnetons
Magnetic Succeptibility @ 18oC x 10-6 cgs
Tensile Strength psi
Yield Strength psi
Electron Work Function  
Vapor Pressure @ 25oC m
Poisson Ratio 0.27
Shear Modulus 4.0 x 106 psi
Critical Temperature oC
Transformation Temperature oC
Critical Pressure atm
Standard Electrode Potential Volts
Ionization Potential eV
Compressability x 10-6 cm2/kg
Thermionic Work Function 3.51 eV
Debye Temperature oK
Yield Point psi
Hall Consatant x 10-13 (ohm/cm)/gauss
Lattice Constant 10-8 cm