1. The problem statement, all variables and given/known data A. Find the electrostatic force between a Na+ ion and a Cl- ion separated by 0.5 nm. B. Would the answer change if the sodium ion were replaced by Li+ and the CL ion by Br-?Explain. 2. Relevant equations I believe you have to use Coulomb's Law....? F=k* [(/q1//q2/) divided by (r^2^)] 3. The attempt at a solution I have several of these to do and I'm not really sure where to even begin. If someone could show me step by step how to do this, I would be really greatful. Thanks!