These electrons will be found equidistant between these two nuclei. Distance will be the same exact. And this only occurs when we have the same amount of protons found in the nucleus. So for example, if we have an H and an H, both nuclei have one protons each. If we have an F and an F, both nuclei have nine protons each and so on. Basically, when we have two of the same atoms, we're going to have a non polar covalent bond as we have here and as we have here.