Question

Which of the two, fission or fusion is a nuclear chain reaction?

Answer 1

1. A reaction that initiates its repetition is known as a chain reaction.
2. In a fission chain reaction, a fissionable nucleus absorbs a neutron and fissions spontaneously, releasing additional neutrons. These, in turn, can be absorbed by other fissionable nuclei, releasing still more neutrons.
3. In a fusion reaction, energy production is not based on a chain reaction.
4. From the above statements, we can conclude fission is a nuclear chain reaction.