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← ScienceWhich outcome reduces binding energy per nucleon in helium?
A)Alpha decay emits many photons
B)Symmetric fission creates smaller nuclei✓
C)Beta decay reduces nucleus stability
D)Nuclear fusion assembles very heavy isotopes
💡 Explanation
Symmetric fission decreases binding energy per nucleon because, via the liquid drop model, the heavy nucleus splits more mass efficient medium sized nuclei, and nucleon configurations become more stable; therefore, post fission nuclei are lighter rather than alpha or beta radioactivity or fusion.
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