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 is the difference between an isotopic and isoelectronic species?


Predict the bond angles and shape of a molecule of ammonia.


Explain why the boiling point increases from sodium to aluminium.


In the presence of ultraviolet light, ethane and chlorine react to give a mixture of products. What are the products of this reaction?