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Question:

The binding energy per nucleon for the parent nucleus is E1 and that for the daughter nuclei is E2. Then what is the relationship between E1 and E2?

E2>E1

E2=2E1

E1=2E2

E1>E2

Solution:

After decay, the daughter nuclei will be more stable hence binding energy per nucleon will be more than that of their parent nucleus. Therefore, E2 > E1.