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Which mechanism increases stability during iron nuclei formation?

A)Increased nuclear binding energy per nucleon
B)Decreased neutron-proton electromagnetic repulsion
C)Enhanced alpha decay quantum tunneling
D)Minimized nuclear surface tension effects

💡 Explanation

Greater stability results from higher binding energy per nucleon because nuclear binding energy reflects the energy required to disassemble a nucleus; therefore, increased binding implies a stronger nucleus, rather than lower energy states via decay mechanisms.

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