PERIODIC ELEMENT
Cd (Cadmium)




Atomic number : 48
Atomic mass : 112.4 g.mol-1
Electronegativity according to Pauling : 1.7
Density : 8.7 g.cm-3 at 20 °C
Melting point : 321 °C
Boiling point : 767 °C
Vanderwaals radius : 0.154 nm
Ionic radius : 0.097 (+2) nm
Isotopes : 15
Electronic shell : [Kr] 4d10 5s2
Energy of first ionisation : 866 kJ.mol-1
Energy of second ionisation : 1622 kJ.mol-1
Standard Potential : - 0.402 V
Discovered by : Fredrich Stromeyer in 1817
 
Atomic Structure Uses (poisonous, nickel-cadmium batteries)