Question

Why there are neutrons in nucleus?

Answer 1

Dear student...

Neutrons are required to stabilize the nucleus

There is repulsion between the protons, which is why, as the number of protons goes up, more and more neutrons are required to stabilize the nucleus (look at how atomic mass goes up relative to atomic number on a periodic table). More nucleons (protons and neutrons) means more strong force, and more neutrons means more space between the protons, reducing the repulsion. Together, these effects can produce a stable nucleus.


Hope this helps you :)