If one or more of the neutrons emitted during fission cab be used to build up further fission then the reaction is self-sustained and is known as __________________?
Correct answer: C. Chain reaction
- A. Fission reaction
- B. Fusion reaction
- C. Chain reaction
- D. Chemical reaction
Explanation
A fission chain reaction occurs when neutrons released by one fission event cause further nuclei to undergo fission. If enough neutrons continue this process, the reaction becomes self-sustaining. The likely trap is option a, which names the individual nuclear event but not the self-propagating sequence.
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About Radioactive Decay
Radioactive decay is the spontaneous transformation of unstable nuclei, described by decay constant, activity, half life and the exponential decay law. Work includes alpha, beta and gamma emissions, decay equations and remaining nuclei, with half life distinguished from the time required for complete decay.
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