In a fission nuclear reaction, a heavy nucleus breaks up into smaller nuclei. In contrast, when two or more lighter nuclei fuse to form a heavier nucleus, the reaction is called a:
Q1. In a fission nuclear reaction, a heavy nucleus breaks up into smaller nuclei. In contrast, when two or more lighter nuclei fuse to form a heavier nucleus, the reaction is called a:
Answer: Fusion nuclear reaction
Explanation: Nuclear fusion is the reaction in which two or more light atomic nuclei combine to form a heavier nucleus, releasing enormous energy — the process that powers the Sun.