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Beryllium

Density 1.85 g/cm3
Thermal Conductivity @ 0oC 0.440 cal/(s/cm/oC)
Specific Heat @ 0oC 0.41 cal/g
Heat of Fusion 263 cal/g
Heat of Vaporization 73.9 kcal/g-atom
Atomic Volume 5.0 W/D
First Ionizaton Energy 215 kcal/g-atom
Electronegativity 1.5 Paulings
Covalent Radius 0.90 Angstroms
Mohs Hardness @ 20oC  
Linear CTE @ 25oC 11.5 x 10-6
Electrical Resistivity @ 20oC  
Electrical Conductance 0.25 mohm-1
Crystal Structure Hexagonal
Thermal Neutron Cross-section  
Magnetic Succeptibility @ 18oC  
Tensile Strength  
Electron Work Function