What are the Applications of Valence Bond Theory?

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Valence bond theory:

  • In a molecule, electrons inhabit atomic orbitals instead of molecular orbitals.
  • Because of the overlaying of atomic orbitals, a chemical bond is formed, and electrons are confined in the bond region.

Applications of Valence bond theory:

  • Valence bond theory in chemistry explores the characteristics of a chemical bond in a molecule from the perspective of atomic valencies.
  • The rule that the central atom in a molecule seeks to establish electron-pair bonds in line with geometric restrictions specified by the octet rule is summarised by valence bond theory.
  • The criterion of the greatest intersection is an integral feature of the Valence Bond theory since it suggests the formation of the strongest possible bonds.
  • This concept is applied to the production of covalent bonds in a broad range of substances.
Valence Bond Theory | CHEM 201

Example of Applications of Valence bond theory:

  • In the instance of the F2 particle, for example, the F-F bond is produced by the crossroads of the pz orbitals of the two F atoms, each of which includes an unpaired electron.
  • Following that, the colliding orbitals in H2 hydrogen and F2 fluorine molecules differ, as do the binding energies and bond lengths between H2 and F2 molecules.
  • The covalent bond in a HF molecule is created by the intersection of the hydrogen 1s orbital and the fluorine 2pz orbital, both of which contain an unpaired electron.
  • BecauseH and F share electrons, HF forms a covalent bond.

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