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← ScienceWhich outcome occurs when the iron isotope Fe-56 exists?
A)Highest nuclear binding energy per nucleon✓
B)Increased susceptibility to alpha decay
C)Maximum neutron capture cross-section reached
D)Spontaneous fission chain reaction begins
💡 Explanation
Fe-56 possesses the highest nuclear binding energy per nucleon because the strong nuclear force most effectively overcomes proton repulsion during its stelllar nucleosynthesis. Therefore, stability is maximized, rather than undergoing spontaneous fission, a decay which elements with MUCH higher atomic mass experience.
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