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Scandium (21Sc44.955910)
[7440-20-2]

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Elemental Form

A much more abundant element on the sun than on earth, scandium is still widely distributed on earth, occuring in over 800 mineral species. Scandium is a silvery-white metal that develops a yellow or pink tint when exposed to air. It is relatively soft and is chemically simialr to the rare earth metals. Scandium's light weight and high melting point suggest applications within the aircraft industry.
Melting Point1541°CBoiling Point2836°C
Density2.989g/cm3Specific Heat @ 25°C0.13cal/g°C
Heat of Fusion3.8k-cal/g-atomHeat of Vaporization81k-cal/g-atom
Atomic Volume15.0W/DFirst Ionization Energy151K-cal/g-mole
Electronegativity1.3Pauling'sCovalent Radius1.44Angstroms
Electrical Resistivity @ 298°C50.9µΩ-cmCrystal StructureHexagonal
Compressibility2.26x10-6cm2/kgTransformation Temperature1335°C