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Lithium (3Li6.941)
[9439-93-2]

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Elemental Form

The least reactive of the alkali metals, lithium is silvery-white, turning yellowish when exposed to moist air. It does not occur free in nature, but is combined in most igneous rocks and in many mineral springs. Lithium has the highest specific heat of any solid element making it useful in heat transfer applications. With a density only about half that of water, it is the lightest solid element.
Melting Point180.5°CBoiling Point1342°C
Density0.53g/cm3Themal Conductivity0.17cal/cm2/cm/s/°C
Heat of Fusion103.2cal/gHeat of Vaporization5100cal/g
Atomic Volume13.1W/DFirst Ionization Energy124K-cal/g-mole
Electronegativity1.0Pauling'sCovalent Radius1.23Angstroms
Mohs Hardness @ 20°C0.6Electrical Resistivity9.446µΩ-cm
Crystal StructureCubic, body centered