PERIODIC ELEMENT
Br (Bromine)

 



Atomic number : 35
Atomic mass : 79.904 g.mol-1
Electronegativity according to Pauling : 2.8
Density : 3.1 g.cm3 at 20 °C
Melting point : - 7.2°C
Boiling point : 58.8 °C
Vanderwaals radius : 0.165 nm
Ionic radius : 0.195 nm (-1)
Isotopes : 10
Electronic shell : [Ar] 3d10 4s24p5
Energy of first ionisation : 1142.7 kJ.mol-1
Standard potential : 1.08 V
Discovered by : Anthoine Balard in 1826
 
Atomic Structure Uses (Poisonous)