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← ScienceWhich outcome occurs when high-energy gamma radiation exceeds photodisintegration threshold in stellar nucleosynthesis?
A)Decreased heavy element abundance✓
B)Increased stellar core neutron flux
C)Enhanced rate of alpha capture
D)Elevated abundance of heavier isotopes
💡 Explanation
High-energy gamma rays break nuclei apart, therefore photodisintegration weakens nuclear binding energies during nucleosynthesis, resulting in a decreased abundance of heavy elements, rather than heavier isotope formation, because the nuclei fragment under the gamma radiation.
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