Question

what are the starting materials for nuclear fission? two small nuclei two large nuclei a neutron and a large nucleus a neutron and a small nucleus

Explanation:

Nuclear fission is a process where a large nucleus (such as uranium - 235 or plutonium - 239) absorbs a neutron. This absorption makes the nucleus unstable, and it then splits into smaller nuclei, releasing more neutrons and a large amount of energy. So the starting materials are a neutron and a large nucleus.

Answer:

C. a neutron and a large nucleus