Question

which phrase best describes nuclear fusion? (1 point) the process by which a large nucleus is divided into smaller nuclei a series of reactions in which particles from one reaction trigger the next reaction the spontaneous emission of radiation from an unstable nucleus the process by which small nuclei combine into a larger nucleus

Explanation:

Nuclear fusion is the process where small atomic nuclei combine to form a larger nucleus, releasing a large amount of energy. The first option describes nuclear fission, the second is a chain - reaction, and the third is radioactive decay.

Answer:

the process by which small nuclei combine into a larger nucleus