Symbol Cd Atomic radius: pm 149 Fusion: kJ/Mole 6.19
Name Cadmium Ionic radius: pm (+2)95 Boiling point: C 767
Atomic number 48 Electron affinity Unst anion Melting point: C 321
Atomic weight 112.4 1st  ion potential 8.99 Specific Heat Cap: J/(g K) 0.23
Classification Trans metal Natural form Solid Thermal Cond: W/(cm K) 0.97
Configuration [Kr]4d105s2 Crystal structure Hex Electrical Cond 0.138
Oxidation states 2 Density 8.69 Abundance: mg/kg-crust 0.15
Electronegativity 1.69 Vaporization: kJ/Mole 99.87    
Friedrich Strohmeyer discovered cadmium in 1817 in a sample of zinc carbonate, and independently, K.S.L. Hermann and J.C.H. Roloff found cadmium at the same time in a speciment of zinc oxide. Uses - batteries, yellow pigment (in compound with sulfur), control rods and shields  in nuclear reactors, TV tube phosphors