What does ‘aromatic’ mean?

In A Level Chemistry, the word aromatic means a molecule’s structure contains at least one cyclic ring which has a delocalised pi electron cloud above and below it. This occurs from unbonded P orbital electrons becoming delocalised from their (usually carbon) atom and being spread across the whole ring structure, which stabilises the molecule. Drawing the molecule in this way is known as its resonance structure.

SL

Related Chemistry A Level answers

All answers ▸

What does Le Chatelier's principle say happens to an equilibrium when temperature is changed or a catalyst is added?


Why can Cyclohexene react with Bromine but Benzene cannot?


What happens upon the addition of NaOH solution (OH- ions) to a pink solution of cobalt chloride? Include equation(s) in your answer.


Explain what is meant by Enthalpy