Nuclear fission is the splitting of atomic nuclei, while nuclear fusion is the combining of atomic nuclei.

true

false

Nuclear reactions are those that involve the nucleus of an atom. Nuclear fission involves the splitting of an atomic nucleus and the formation of two distinct atomic species. Nuclear fusion is indeed the combining of two atomic nuclei in order to form a single atomic species. Therefore the answer to the question is true. 

Bthats what im doing to and i figured it out it is b

Idon't know hope someone you