Energy Diagram for Benzene The six electrons fill energy three bonding pi orbitals. π 青 nonbonding ·All bonding orbitals line are filled(“closed shell"),an extremely TI- stable arrangement. Pearson Prentice ind Chapter 16 16 Chapter 16 16 Energy Diagram for Benzene • The six electrons fill three bonding pi orbitals. • All bonding orbitals are filled (“closed shell”), an extremely stable arrangement