Asked by shambhavi.srivastava5 | 11th Oct, 2015, 02:01: PM

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However, answer to your query is,
The valence bond approach considers the overlap of the atomic orbitals (AO) of the participation atoms to form a chemical bond.
Valence Bond theory describes covalent bond formation as well as the electronic structure of molecules. Whereas, the NaCl molecule is formed by ionic bonding.
The VB theory assumes that electrons occupy atomic orbitals of individual atoms within a molecule, and that the electrons of one atom are attracted to the nucleus of another atom.
Due to the overlapping, electrons are localized in the bond region. The overlapping AOs can be of different types
Sigma bond: s-s, s-p, p-p
pi bond: p-p

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Answered by Hanisha Vyas | 13th Oct, 2015, 11:49: AM