Question

which phrase best describes nuclear fusion? (1 point) the process by which small nuclei combine into a larger nucleus the spontaneous emission of radiation from an unstable nucleus 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

Explanation:

Nuclear fusion is the process where small nuclei combine to form a larger nucleus. Fission is when a large nucleus divides into smaller nuclei, radioactive decay is the spontaneous emission of radiation from an unstable nucleus, and a chain - reaction is a series of reactions where particles from one reaction trigger the next.

Answer:

the process by which small nuclei combine into a larger nucleus