Symbol Li Atomic radius: pm 152 Fusion: kJ/Mole 3.00
Name Lithium Ionic radius: pm (+1)76 Boiling point: C 1342
Atomic number 3 Electron affinity 0.62 Melting point: C 181
Atomic weight 6.940 1st  ion potential 5.39 Specific Heat Cap: J/(g K) 3.58
Classification Alkali metal Natural form Solid Thermal Cond: W/(cm K) 0.85
Configuration 1s22s1 Crystal structure BCC Electrical Cond 0.108
Oxidation states 1 Density 0.53 Abundance: mg/kg-crust 20
Electronegativity 0.98 Vaporization: kJ/Mole 134.7    
Lithium was discovered in 1817 by Johann Arfvedson. Uses - batteries, ceramics, lubricants, medicine