<span> In summary it is the balance of protons and neutrons in a </span>nucleus<span> which determines whether a </span>nucleus<span> will be</span>stable<span> or unstable. Too many neutrons or protons upset this balance disrupting the binding energy from the strong nuclear forces making the </span>nucleus<span> unstable.</span>
<span>Unstable Nuclei. ... In summary it is the balance of protons and neutrons in a nucleus which determines whether a nucleus will be stable
or unstable. Too many neutrons or protons upset this balance disrupting
the binding energy from the strong nuclear forces making the nucleus unstable.</span>
