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← ScienceWhich consequence results when enriched uranium isotopes decay?
A)Criticality risk increases over time
B)Neutron flux reduces gradually minimum✓
C)Gamma radiation is entirely ceasing
D)Material density shows radical expansion
💡 Explanation
Radioactive decay of U-235 reduces fissile material because it transforms into other isotopes, therefore neutron flux declines rather than sustains chain criticality, because neutron production will decrease.
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