what is the valence bond theory

#Chemistry of class 12 level #Chemistry paper - i-Paper - I

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what is the valence bond theory

Sourya Dey 14th Mar, 2020

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Awanya Dabas 14th Mar, 2020

Hey!

Valence bond theory or VB theory is a theory based on quantum mechanics that explains how chemical bonding works. In valence bond theory , the atomic orbitals of individual atoms are combined to form chemical bonds . The other major theory of chemical bonding is molecular orbital theory or MO theory .

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Virat Kohli Buna

14th Mar, 2020

give its postulates

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Awanya Dabas

14th Mar, 2020

Virat Kohli Buna The postulates are:
1) Valence orbitals of atom overlap each other to form a bond.
2) A pair of electrons is present in overlapping orbitals.
3) Electron density is maximum around bonded atoms.
4) Degree of overlapping determines strength of the bond.

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