In the following atomic model, where does the strong nuclear force happen?

outside a
between a and b
between b and c
inside c

Strong nuclear force will be present inside C.

Explanation: Nuclear forces are attractive forces present between the nucleons to hold the nucleus together.

Nucleus is always present in the center of an atom.

In this image the nucleus is present inside C and there only the nuclear forces are the strongest.

The correct answer is option D, inside C

Explanation:

The strong nuclear force occurs between the subatomic particles which binds the quarks to produce protons and neutrons. As in the figure the protons and neutrons lie inside the shell C, thus the strongest nuclear force will be exerted inside C. This strong nuclear force not only holds the quarks and resulting particles but also hold the nucleus and its surrounding particles.