A student observes a molecule of naphthalene. Based on its structural formula, how many pi electrons are delocalized across the ring system?
Q1. A student observes a molecule of naphthalene. Based on its structural formula, how many pi electrons are delocalized across the ring system?
Answer: 10
Explanation: Each of the five double bonds contributes two pi electrons. 5 is wrong because it counts bonds instead of electrons.