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Which consequence results when nucleon pairing vanishes in neutron-rich nuclei?

A)Fission barrier height collapses
B)Alpha decay rates rapidly increase
C)Binding energy per nucleon decreases
D)Gamow-Teller resonance energy increases

💡 Explanation

Decreased nucleon pairing destabilizes the overall nuclear structure via reduced short-range attractive forces; the volume term in the Semi-Empirical Mass Formula becomes dominant, therefore binding energy per nucleon decreases systematically rather than increased fission, and other quantum effects become more significant.

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