Name: Lithium  Acid-Base Properties: Strongly Basic  Atomic Number: 3  Atomic Radius: 2.05 Angstrom  Atomic Symbol: Li  Atomic Volume: 13.1 cc/mole  Boiling Point: 1615 K  Covalent Radius: 1.23 Angstrom  Crystal Structure: Cubic, body-centered  Density: 0.53 g/cc at 300 K  Electrical Conductivity: 0.11 Mmho/cm  Electron Configuration: [He] 2s1  First Ionization Potential: 5.39 V  Heat of Fusion: 3 kJ/mole  Heat of Vaporization: 145.92 kJ/mole  Melting Point: 453.7 K  Natural State: Solid  Oxidation States: 1  Pauling Electronegativity: 0.98  Specific Heat Capacity: 3.6 J/g-K  Thermal Conductivity: 0.85 W/cm-K  Weight: 6.941 g/mole

History: Lithium was discovered by Arfvedson in 1817.  Lithium is the lightest of all metals, with a density only about half that of water.  It does not occur free in nature; combined it is found in small units in nearly all igneous rocks