In organic chemistry, the term aromaticity is used to describe a cyclic (ring-shaped), planar (flat) molecule that exhibits unusual stability as compared to linear (line-shaped) molecules with the same number of atoms. As a result of their stability, it is very difficult to cause aromatic molecules to break apart and to react with other substances.

In organic chemistry, the term aromaticity is used to describe a cyclic (ring-shaped), planar (flat) molecule that exhibits unusual stability as compared to linear (line-shaped) molecules with the same number of atoms. As a result of their stability, it is very difficult to cause aromatic molecules to break apart and to react with other substances.