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← ScienceWhich consequence results when nucleon binding energy varies locally in a heavy nucleus?
A)Increased probability of alpha decay✓
B)Constant rate of spontaneous fission
C)Enhanced neutron capture cross-section
D)Symmetric fragment mass distribution
💡 Explanation
Alpha decay is more probable because local variations in binding energy create instability; the alpha particle exploits this. Therefore, alpha decay increases, rather than a constant chain reaction, or neutron capture, because the energy release favors alpha emission.
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