The problem is this: Estimate the binding energy of the H2 molecule, assuming the two H nuclei are 0.074 nm apart and the two electrons spend 33% of their time midway between them. I assume that this problem uses the equation F=ke2/d. So far, I have that E1=F1d, and E2=F2v*t*0.33. Then, we know that the binding energy E should be E1-E2, and therefore E=0.67E1. And E1=ke2/d. Is this correct so far? And where do I go from here? I do know that the correct answer is 4.6 eV, but just can't get there. Any help would be greatly appreciated!