What is Resonance

What is resonance?

• It refers to the use of more than one Lewis structure in order to represent a particular molecule.

• It is also known as an effect by which a substituent exerts either an electron-withdrawing effect or an electron donating effect through the pi system of the molecule. This should make more since if you are taking organic chemistry.

Resonance structures are considered as artificial means to explain experimental observations. Therefore, artificial structures are theoretical. A combination of all the possible resonance-structures best explains both physical and chemical behavioral observations of a molecule. This combination is known as a resonance hybrid structure.

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