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ERBIUM (68Er167.29)

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Element Description

Erbium metal is soft, malleable, bright, and silvery. It does not oxidize as rapidly as some of the other rare earth metals as it is fairly stable in air. Erbium has a high electrical resistivity. As with other rare earth metals, properties depend on the impurities present. Naturally occuring erbium is a mixture of six stable isotopes.

Property Name Property Value Property Name Property Value
Atomic Code (68Er167.29) Electronegativity 1.2Pauling's
CAS # 7440-52-0 Covalent Radius 1.57Angstroms
Electrical Resistivity @ 298°C 86.0µΩ-cm
Melting Point 1529°C Crystal Structure Hexagonal
Boiling Point 2868°C Compressibility 2.39x10-6cm2/kg
Density 9.066g/cm3 Thermal Neutron Cross Section 166barns/atoms
Themal Conductivity 0.023cal/cm2/cm/s/°C Magnetic Moment 9.5Bohr magnetons
Specific Heat @ 25°C 0.040cal/g°C Magnetic Susceptibility 44,100x10-6emu/mole
Heat of Fusion 4.1k-cal/g-atom Tensile Strength 42,4000psi
Heat of Vaporization 67k-cal/g-atom Yield Strength 38,700psi
Atomic Volume 18.1W/D Standard Electrode Potential +2.1volts

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