n + energy\n4he + energy\nnuclear fission because an atom is splitting into two fragments\nnuclear fusion…

n + energy\n4he + energy\nnuclear fission because an atom is splitting into two fragments\nnuclear fusion because the products that are produced are radioactive\nnuclear fission because a large amount of energy is being released\nnuclear fusion because atomic nuclei combine to form a heavier nucleus
Answer
Brief Explanations:
Nuclear fusion is the process where atomic nuclei combine to form a heavier nucleus, releasing energy. In the image, hydrogen - like nuclei are combining to form a helium nucleus, which is characteristic of nuclear fusion. Nuclear fission involves splitting of an atom into two or more smaller fragments. Radioactivity of products is not the defining characteristic of nuclear fusion here. The release of a large amount of energy can occur in both fission and fusion, but the key is the combination of nuclei in fusion.
Answer:
nuclear fusion because atomic nuclei combine to form a heavier nucleus