PERIODIC ELEMENT
Zn (Zinc)




Atomic number : 30
Atomic mass : 65.37 g.mol-1
Electronegativity according to Pauling : 1.6
Density : 7.11 g.cm-3 at 20 °C
Melting point : 420 °C
Boiling point : 907 °C
Vanderwaals radius : 0.138 nm
Ionic radius : 0.074 (+2) nm
Isotopes : 10
Electronic shell : [Ar] 3d10 4s2
Energy of first ionisation : 904.5 kJ.mol-1
Energy of second ionisation : 1723 kJ.mol-1
Standard Potential : - 0.763 V
Discovered by : Andreas Marggraf in 1746
 
Atomic Structure Uses (metal coating, rust protection, brass, bronze, nickel)