The strong interaction is the attractive force that brings quarks (elementary particles) together to form nucleons (protons and neutrons). That is strong nuclear force operates among the heavier elementary particles and the nucleons.
What is Nuclear Force?
The nuclear force is a force that acts between the protons and neutrons of atoms. The nuclear force is one of nature’s four basic forces, along with gravitational and electromagnetic forces. They are also recognized as the strong forces because they are 10 million times stronger than chemical binding forces.