Symbol Na Atomic radius: pm 186 Fusion: kJ/Mole 2.60
Name Sodium Ionic radius: pm (+1)102 Boiling point: C 883
Atomic number 11 Electron affinity 0.55 Melting point: C 98
Atomic weight 22.99 1st  ion potential 5.14 Specific Heat Cap: J/(g K) 1.23
Classification Alkali metal Natural form Solid Thermal Cond: W/(cm K) 1.41
Configuration [Ne]3s1 Crystal structure BCC Electrical Cond 0.210
Oxidation states 1 Density 0.97 Abundance: mg/kg-crust 23,600
Electronegativity 0.93 Vaporization: kJ/Mole 89.04    
Sir Humphrey Davy discovered sodium in its elemental form in 1807.  The symbol Na is derived form its Latin name natrium. Uses - lamps, table salt, medicine, agriculture