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Element Details

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HOLMIUM (67Ho164.93032)

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Element Description

Pure holmium's luster is metallic to bright silver. The metal is relatively soft, malleable, and has unusual magnetic properties. While it oxidizes rapidly in moist air and at elevated temperatures, it is relatively stable in dry air at room temperature.

Property Name Property Value Property Name Property Value
Atomic Code (67Ho164.93032) Covalent Radius 1.58Angstroms
CAS # 7440-60-0 Electrical Resistivity @ 298°C 81.4µΩ-cm
Crystal Structure Hexagonal
Melting Point 1474°C Compressibility 2.47x10-6cm2/kg
Boiling Point 2700°C Thermal Neutron Cross Section 64barns/atom
Density 8.795g/cm3 Magnetic Moment 10.89Bohr magnetons
Specific Heat @ 25°C 0.039cal/g°C Magnetic Susceptibility 70,200x10-6emu/mole
Heat of Fusion 4.1k-cal/g-atom Tensile Strength (annealed) 37,500psi
Heat of Vaporization 67k-cal/g-atom Yield Strength 32,100psi
Atomic Volume 18.7W/D Transformation Temperature 1428°C
Electronegativity 1.2Pauling's Standard Electrode Potential +2.1volts


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