Symbol Zn Atomic radius: pm 133 Fusion: kJ/Mole 7.32
Name Zinc Ionic radius: pm (+2)74 Boiling point: C 907
Atomic number 30 Electron affinity Unstable anion Melting point: C 420
Atomic weight 65.39 1st  ion potential 9.39 Specific Heat Cap: J/(g K) 0.39
Classification Trans metal Natural form Solid Thermal Cond: W/(cm K) 1.16
Configuration [Ar]3d104s2 Crystal structure Hex Electrical Cond 0.166
Oxidation states 2 Density 7.14 Abundance: mg/kg-crust 70
Electronegativity 1.65 Vaporization: kJ/Mole 115.5    
Zinc was known in Roman times in combination with copper as the alloy brass.  The metallurgists of India isolated the metal around the 13th century, and in the 16th century, there was large-scale production of zinc by the metallurgists of China. Uses - batteries, galvanizing, brass, roof cladding, protection for iron structures, coins