Question

Why protons in nucleus is stable ?
In nucleus there are only protons

Answer 1

Answer:

The reason is that there are two kinds of forces involved inside the nucleus: electromagnetic and nuclear. ... So inside a nucleus there exists a battle between the electrical repulsion and nuclear attraction. The proton by itself is stable but the strong force is not quite strong enough to bind two protons.

Answer 2

Hey mate,

I think this is your æñßwēr

Thus unlike nucleons are attracted to each other and like one are repelled. A nucleus is held together by the spin pairing of the nucleons and the attraction of neutrons and protons for each other. ... Without a source for this additional energy the neutron cannot decay. Hence the neutron in a deuteron is stable.