I need help with this please.​

Which of the following statements is false regarding aromaticity? a. the compound must be cyclic b. the compound must be fully conjugated c. the compound must be planar d.the number of electrons in the pi system must satisfy the hückel 4n+2 rule e. the compound must have a neutral charge

For ai it's atomic number is 13 and it's mass number is 27 how many neutrons does it have

2. how is heavy water different from normal water