Question

Why do stable nuclei have more neutrons than protons?

Answer 1

Answer:

This happens because as a nuclear radius increases a greater strong force is required to keep it stable but addition of more protons will only increase electrostatic repulsion so the number of neutrons became more than the proton

Explanation:

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Answer 2

Answer:

Well,

Explanation:

This is because the neutron adds mass to the atom.

In chemical reactions however, the nucleus is not involved and nuclear reactions are more a topic in physics. Neutrons play very important role in an atom. They provide stability to the atom and also prevent protons from repelling one another.

protons have positive charges and the only reason that they are willing to stay together in the nucleus is because the neutrons effectively act as "filters" for these positive charges by interacting with the protons themselves.