Question

Explain the term : Resonance energy.​

Answer 1

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(1) Many polyatomic molecules or ions can be represented by different resonating structures each having different energy,

(2) The energy of resonating structures is different than the energy of the most stable structure or resonance hybrid.

(3) The difference in energy of the most stable resonating structure or resonance hybrid and different resonating forms is called resonance energy

Answer 2

The resonance energy is defined as the difference between the electronic energy of a real (conjugated) molecule and a hypothetical Kekuléé structure with localized bonds.