Valence Shell Electron Pair Repulsion Theory, its Importance Limitations of the VSEPR Theory: A Review

The Valence or VSEPR Shell Electron Pair Repulsion principle is an idea which points out the geometry of molecules based upon repulsion among electron pairs in the valence shell. Valence shell electrons might be Bonding electrons (just count the sigma bonds) or Antibonding electrons (lone pairs) The amount of these pairs as well as the function of theirs establishes the bond perspective because of repulsion of the bad electrons to one another. These bonds as well as lone pairs are going to form the geometry which keeps these electrons as much apart as you can. For example with 2 electrons pairs you obtain a linear structure. For instance co2 has two two-fold bonds without any lone pair electrons creating a 180° bond perspective in the main (carbon) atom.