Question

When is said to be the nucleus unstable?

Answer 1

hi dear ,

here is your answer

The nucleus of this kind of atom is said to be stable. In some atoms the binding energy is not strong enough to hold the nucleus together, and the nuclei of these atoms are said to be unstable. Unstable atoms will lose neutrons and protons as they attempt to become stable.

hope it will help you......

Answer 2

When the binding energy of nucleons is insufficient to hold the other constituents of an atom