About vesper theory

See actually its not vesper theory we just cl it so while pronouncing it ...its actually vsepr theory. Its full form is valence shell electron pair repulsion theory. Its has a few postulates which is actually a part of class 11 curriculum ( chapter 4 chemistry class 11). In brief it basically helps us to deduce actual structures of molecules from their formulas and their deviation from expected structures by stating some rules for repulsion between the electrons. It basically tells us that bp- bp repulsion is weaker than bp- lp repulsion which is further weaker than lp - lp repulsion.lp stands fr lone pair of electrons i.e. valence shell electrons that do not participate in bonding and bp stands for bonded pairs of electrons that participate in bonding.