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Which threshold failure follows decreased nuclear binding stability?

A)Spontaneous fission reaction initiation
B)Increased rate of alpha decay
C)Suppressed rate negative beta decay
D)Enhanced neutron capture cascade

💡 Explanation

Spontaneous fission results because insufficient binding energy means the nucleus’s total energy exceeds that of the fission fragments; surface tension is unable contain the disruptive Coloumb forces. Therefore, fission begins, rather than other decays which remain energetically unfavorable.

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