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← ScienceWhich consequence results when nucleon number increases past iron-56?
A)Decreased binding energy per nucleon✓
B)Enhanced neutron capture cross-section
C)Increased probability of alpha decay
D)Shift toward stable isotope formation
💡 Explanation
Decreased binding energy per nucleon occurs because the strong nuclear force's effect diminishes relative to proton-proton repulsion. Therefore, heavier nuclei are less stable, rather than forming stable isotopes or always undergoing alpha decay.
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