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← ScienceWhich consequence results when iron's average binding energy is exceeded?
A)Increased neutron capture cross-section arises
B)Supernova nucleosynthesis cannot produce it
C)Iron spontaneously undergoes alpha decay
D)Nuclear fusion consumes rather than releases✓
💡 Explanation
Nuclear fusion consumes rather than releases energy when fusing nuclei heavier than iron due to the decreasing Binding Energy per nucleon. Therefore, nuclear fusion of heavier elements requires energy input, rather than releasing it like lighter elements.
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