What do you mean by strong nuclear force?

Explanation

### Step-by-Step Solution:

1. **Definition of Strong Nuclear Force**: The strong nuclear force is one of the four fundamental forces of nature. It is responsible for holding the components of an atomic nucleus together.

**Hint**: Remember that the four fundamental forces are gravitational, electromagnetic, weak nuclear, and strong nuclear forces.

2. **Strength and Range**: Among the four fundamental forces, the strong nuclear force is the strongest. However, it has a very short range, effective only at distances on the order of a femtometer (10^-15 meters), which is about the size of an atomic nucleus.

...