The primary reason very large nuclei are unstable is due to

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Quizplus · Accepted Answer

The cumulative repulsive force amongst the protons is the primary reason why very large nuclei are unstable. As the number of protons in the nucleus increases, the repulsive force amongst them also increases, making the nucleus more unstable and likely to undergo radioactive decay. This is known as the Coulomb force, which is the electrostatic force of repulsion between two charged particles. The strong nuclear force that binds the nucleons together becomes weaker as the distance between them increases, leading to instability in very large nuclei.

The Primary Reason Very Large Nuclei Are Unstable Is Due