Answer:
The number of protons and neutrons in reacting atoms changes.
Explanation:
Typical of all nuclear reactions is the change that occurs within the nucleus of the atom. In a nuclear reaction, the number of protons and neutrons changes to form a new atom.
What drives a nuclear reaction is the stability ratio between the neutron and protons. Every atom has its stability ratio. A nucleus with a neutron/proton combination different from the stability ratio will be unstable and split into one or more other nuclei. Therefore, a nuclear reaction occurs to maintain and ensure that the stability ratio is maintained and achieved.
