Why must there be an attractive force to explain the existence of stable nuclei?

There is a need of attractive force in explaining the existence of a stable nuclei because there will be a presence of repel in protons to each other, with that, there is a need to provide another force in which will help and prevent them from having to fly apart.

due to the fact that it skipped a generation we can tell it is definitely not a dominant trait, therefore it must be recessive. i think this is right let me know!

explanation:

b c a d mark me