Question

state the main features of VSEPR theory

Answer 1

the shape of a Molecule depends on number of electron pairs around Central metal atom .
electrons weird stunts to occupy position that minimise repulsion .
lone pair lone pair repulsion is greater than lone pair Bond pair repulsion greater than Bond pair Bond pair repulsion

Answer 2

The VSEPR Theory has five main postulates.

• The shape of a covalent molecule is determined by the electron pair repulsion among the bond pairs and lone pairs of electrons in the valence shell of the atom.
• The electron pairs have a tendency to orient themselves in such a way so as to minimise reputation, and maximise the distance between them.
• The valence shell is taken as a sphere with electron pairs localising on the spherical surface at maximum distance from one and another.
• The repulsion is highest between two lone electron pairs, and lowest between two bond pairs of electrons.
• When two or more resonant structures represent a molecule, the VSEPR theory is applicable to such structures.