17. Aromaticity
Aromatic Heterocycles
12PRACTICE PROBLEM
Classify each of the given species as aromatic, antiaromatic, or nonaromatic. For those classified as aromatic or antiaromatic, specify the number of delocalized π electrons in the cyclic system.
![](https://static.studychannel.pearsonprd.tech/courses/organic-chemistry/thumbnails/9099e0c8-69c8-4a06-9e1f-c5ff2172e39d)
Classify each of the given species as aromatic, antiaromatic, or nonaromatic. For those classified as aromatic or antiaromatic, specify the number of delocalized π electrons in the cyclic system.