Central atom:Clclo2 structure
Cl contributes:7 e
2 x O contibute:4 e
-ve charge:1 e
Total VSE:12
Total VSEP:6
2 x double bonds:− 2 pairs
Revised Total:4
Geometry:V-shaped (based on tetrahedral)


  • Large O=Cl=O bond angle (111°). VSEPR theory predicts that the bond angle should be less than 109° due to lone-pair repulsion.
    • Lone-pair:lone-pair repulsion is about the same as double-bond:double-bond repulsion.
    • Most of the negative charge on this ion will be on the oxygen atoms. These atoms will thus repel each other to some extent thus producing a larger than expected bond angle.


3-D rotatable diagram