According to Coulomb’s law, which pair of charged particles has the lowest potential energy?
a. a particle with a 1− charge separated by 100 pm from a particle with a 3+ charge.
b. a particle with a 1− charge separated by 100 pm from a particle with a 2+ charge.
c. a particle with a 1− charge separated by 200 pm from a particle with a 1+ charge.