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Which outcome results when iron-56 gains excess excitation energy?

A)Neutron emission becomes energetically favorable
B)Beta decay probability decreases sharply
C)Alpha particle binding energy strengthens
D)Spontaneous fission cross-section declines

💡 Explanation

Excess excitation energy surpasses the neutron separation energy; therefore neutron emission occurs via photodisintegration because the increase in binding overcomes the strong force, rather than decay via beta, alpha, or fission.

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