1. The problem statement, all variables and given/known data What is the electric potential energy of the electron? The protons are fixed and cannot move, a=0.94 nm, s=1.24 nm. 2. Relevant equations U=Vq=KQq/d 3. The attempt at a solution U=Vq= 2KQq/d K=8.99 x 10^9 Q=charge of proton 1.6 x 10^-19 q= charge of electron (-1.6)x10^-19 d= sqrt(a^2+s^2) Also is my final anwser going to be negative? or should it be a positive?