Symbol Mg Atomic radius: pm 160 Fusion: kJ/Mole 8.48
Name Magnesium Ionic radius: pm (+2)72 Boiling point: C 1090
Atomic number 12 Electron affinity Unstable anion Melting point: C 650
Atomic weight 24.31 1st  ion potential 7.65 Specific Heat Cap: J/(g K) 1.02
Classification Alk earth metal Natural form Solid Thermal Cond: W/(cm K) 1.56
Configuration [Ne]3s2 Crystal structure Hex Electrical Cond 0.226
Oxidation states 2 Density 1.74 Abundance: mg/kg-crust 23,300
Electronegativity 1.31 Vaporization: kJ/Mole 128.7    
Sir Humphrey Davy was the first to isolate magnesium in 1808. Uses - alloys, flashbulbs, airplanes, missles, flares, fireworks, medicine