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Holmium (67Ho164.93032)
[7440-60-0]

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Elemental Form

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.
Melting Point1474°CBoiling Point2700°C
Density8.795g/cm3Specific Heat @ 25°C0.039cal/g°C
Heat of Fusion4.1k-cal/g-atomHeat of Vaporization67k-cal/g-atom
Atomic Volume18.7W/DElectronegativity1.2Pauling's
Covalent Radius1.58AngstromsElectrical Resistivity @ 298°C81.4µΩ-cm
Crystal StructureHexagonalCompressibility2.47x10-6cm2/kg
Thermal Neutron Cross Section64barns/atomMagnetic Moment10.89Bohr magnetons
Magnetic Susceptibility70,200x10-6emu/moleTensile Strength (annealed)37,500psi
Yield Strength32,100psiTransformation Temperature1428°C
Standard Electrode Potential+2.1volts