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← ScienceWhich 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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