What is resonance structure??? with examples

1.	What is resonance structure??? with examples
Answer» Resonance is a method in the Valence Bond Theory of bonding to account for and to describe the delocalization of electrons within MOLECULES. Resonating structures are employed when one structure for a single MOLECULE cannot fully describe the bonding that takes place between neighboring atoms. Resonance helps to represent the possible ion intermediates by having the EXTRA electron or electrons delocalized within the molecules. A molecule that has several resonance structures is more stable than a molecule that has less resonance structures. The different structures by which the molecule is REPRESENTED are called resonating structures or canonical forms. Some of the examples of resonance structures are as follows: In ozone, O3, there are TWO equivalent resonance structures. In benzene, we find resonance forms by the curved arrow formalism, which is a way of depicting the “movement” of electrons.

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