Question

write the postulates of VBT.?(valence bond theory)

Answer 1

Postulates of VBT:-


1.The atoms which unite to form a molecule completely retain their identities in the resulting molecule.

2The formation of a covalent bond is due to overlap of atomic orbitals (abbreviated to AO's ).

3.If the AO's possess more than one unpaired electrons, more than one bond can be formed.

Answer 2

Hey dear,

● Valence bond theory -
- Valence bond theory explains chemical bonding of half-filled atomic orbitals.

● Postulates of valence bond theory -
1) Valence orbitals of atom overlap each other to form a bond.
2) A pair electrons is present in overlapping orbitals.
3) Electron density is maximum around bonded atoms.
4) Degree of overlapping determines strength of the bond.

Hope this helps you...