The valence shell is the outermost electron-occupied shell of an atom. The valence shell holds the electrons that are involved in bonding and are the electrons shown in a Lewis structure.
he acronym VSEPR remains for the valence-shell electron combine aversion show. he acronym VSEPR remains for the valence-shell electron combine aversion show The model states that electron pairs will repel each other such that the shape of the molecule will adjust so that the valence electron-pairs stay as far apart from each other as possible. Particles can be deliberately characterized by the quantity of holding sets of electrons and also the quantity of nonbonding or solitary matches around the focal atom.
VSEPR theory allows more accurate predictions of molecular shape.