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Selenium

Density 4.79 g/cm3
Thermal Conductivity @ 25oC 0.0001 cal/(s/cm/oC)
Specific Heat @ 25oC 0.084 cal/g
Heat of Fusion 1.25 kcal/g-atom
Latent Heat of Fusion kcal/g-mole
Heat of Vaporization 3.34 kcal/g-atom
Latent Heat of Vaporization kcal/g-atom
Atomic Volume 16.5 W/D
First Ionizaton Energy 225 kcal/g-mole
Electronegativity 2.4 Paulings
Covalent Radius 1.16 Angstroms
Brinell Hardness  
Mohs Hardness @ 20oC 2.0
Vickers Hardness @ 20oC  
Linear CTE @ 20oC 3.79 x 10-5
Electrical Resistivity @ 298oK mohm/cm
Electrical Conductance 0.08 mohm-1
Crystal Structure Hexagonal
Curie Temperature oC
Modulus of Elasticity kg/mm2
Youngs Modulus psi
Thermal Neutron Cross-section barnes/atom
Magnetic Moment magnetons
Magnetic Succeptibility @ 18oC -0.32 x 10-6 cgs
Tensile Strength psi
Yield Strength psi
Electron Work Function  
Vapor Pressure @ 25oC m
Poisson Ratio  
Shear Modulus  
Critical Temperature oC
Transformation Temperature 1335oC
Critical Pressure atm
Standard Electrode Potential Volts
Ionization Potential eV
Compressability 12.2 x 10-5 atm-1
Thermionic Work Function eV
Debye Temperature oK
Yield Point psi
Hall Consatant x 10-13 (ohm/cm)/gauss
Lattice Constant 10-8 cm