Each cyclic structure shown contains a heteroatom that has lone-pair electrons. For each structure, determine whether the lone-pair electrons are delocalized and whether the structure is aromatic. The lone pair in compound A is Compound Ais The lone pair in compound B is B. Compound B is IZ: Each cyclic structure shown contains a heteroatom that has lone-pair electrons. For each structure, determine whether the lone-pair electrons are delocalized and whether the structure is aromatic. A The lone pair in compound A is Compound A is aromatic delocalized. not delocalized not aromatic The lone pair in compound B is B . Compound B is delocalized. not aromatic. not delocalized I aromatic