In the helium atom, the strong force is a fundamental interaction between the "<span>(4) neutrons and protons" and it should be noted that this is the case for most atoms. </span>
there exist four fundamental interaction force as following
1). Gravitational force
2) Electromagnetic force
3). Weak Nuclear force
4). Strong Nuclear force
So here we have to find the strong force between the subatomic particles which will have strongest force
So here all interaction between charge particles are always electromagnetic force which is always weaker than nuclear force
So here we can say that the strongest force will be force between neutrons and protons as the force between them is always strong nuclear force due to which they resides into a small space known as nucleus
