- #1
gsingh2011
- 115
- 1
My teacher explained that when a large nucleus has too few neutrons, the binding energy is not enough to hold the nucleus together. But by adding neutrons the binding energy increases without increasing the repulsion between nucleons, and thus the nucleus can stay together. But atoms that have too many neutrons also undergo nuclear decay. If the previous logic is right, those atoms should be very stable, so why does too many neutrons make the atom unstable?