Question

four nuclei of an element undergo fusion to form a heavier nucleus, with release of energy. which of two- parent or daughter nucleus - would have higher binding energy per nucleon?

Answer 1

In fusion, parent nuclei fuse to form daughter atom and release some amount of energy . It means daughter nuclei are more stable than parent nuclei .
We know, binding energy per nucleon means : - energy required to break the nucleus per nucleon. So, it means more stable substance have more binding energy .
Hence , it is clear that daughter nuclei have more binding energy per nucleon .