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Element Details


Element Description

This silvery-white, rare earth metal is malleable and ductile. Gadolinium is relatively stable in dry air, but forms an oxide coating in moist air which spalls off, exposing fresh metal. Gadolinium has unusual superconductive properties and when alloyed with iron, chromium, or related metals is found to greatly improve workability and resistance to temperature and oxidation. Gadolinium also has unique magnetic properties.

Property Name Property Value Property Name Property Value
Atomic Code (64Gd157.25) Electronegativity 1.1Pauling's
CAS # 7440-54-2 Covalent Radius 1.61Angstroms
Electrical Resistivity @ 298°C 131µΩ-cm
Melting Point 1312°C Crystal Structure Hexagonal
Boiling Point 3273°C Compressibility 2.56x10-6cm2/kg
Density 7.9g/cm3 Thermal Neutron Cross Section 46,000barns/atom
Themal Conductivity 0.021cal/cm2/cm/s/°C Magnetic Moment 7.95Bohr magnetons
Specific Heat @ 25°C 0.071cal/g°C Magnetic Susceptibility 356,000x10-6emu/mole
Heat of Fusion 3.70k-cal/g-atom Tensile Strength 27,600psi
Heat of Vaporization 72k-cal/g-atom Yield Strength 25,100psi
Atomic Volume 19.9W/D Transformation Temperature 1260°C
First Ionization Energy 142K-cal/g-mole Standard Electrode Potential +2.2volts

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