# Aromaticity of Tropone [duplicate]

When we are determining if a given compound is aromatic using Hückel's rule, we count the number of delocalized $$\pi$$ electrons.

In tropone for example, if I wanted to count the number of delocalized $$\pi$$ electrons, should I count the $$\pi$$ electrons of the $$\ce{C=O}$$ bond?

Or is the aromaticity of tropone because we can draw a more stable aromatic resonating structure in which the $$\ce{C}$$ acquires a positive charge and the $$\ce{O}$$ a negative charge?

• May 5 '19 at 10:30