which process occurs in a fission nuclear reactor?\nnuclei combine.\nnuclei split apart.\nneutrons…

which process occurs in a fission nuclear reactor?\nnuclei combine.\nnuclei split apart.\nneutrons combine.\nneutrons split apart.
Answer
Brief Explanations:
In a fission nuclear reactor, the process of nuclear fission occurs where heavy - nuclei are split into lighter nuclei.
Answer:
Nuclei split apart.