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GERMANIUM (32Ge72.61)

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Element Description

This element is a grayish-white, lustrous, brittle metalloid. Although germanium is a poor conductor of electricity, it is often doped with other elements and is used as a transistor element in thousands of electronic applications. Germanium is most important as a semiconductor material and it is on this area that the majority of germanium is used.

Property Name Property Value Property Name Property Value
Atomic Code (32Ge72.61) First Ionization Energy 187K-cal/g-mole
CAS # 7440-56-4 Electronegativity 1.8Pauling's
Covalent Radius 1.22Angstroms
Melting Point 937.2°C Linear Coefficient of Expansion 6.1x10-8K-1
Boiling Point 2830°C Electrical Resistivity @ 27°C 47Ω-cm
Density 5.32g/cm3 Crystal Structure Diamond
Themal Conductivity 0.15cal/cm2/cm/s/°C Vapor Pressure @ 27°C 1.1x10-9atm
Specific Heat @ 25°C 0.074cal/g°C Thermionic Work Function 4.5eV
Latent Heat of Fusion 111.5k-cal/g-atom Magnetic Susceptibility @ 20°C -22x106emu/mole
Latent Heat of Vaporization 1100cal/g Debye Temperature 362°K
Atomic Volume 13.6W/D

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