7.34 With what neutral molecule is ClO isoelectronic? Is that molecule a Lewis base?

ClO is isoelectronic to ClF. Also, both species contain 26 electrons in all as shown.
Total electrons ClO = 17 + 8 + 1 = 26
In ClF = 17 + 9 = 26
ClF acts like a Lewis base as it accepts electrons from F to form ClF3.