If one or more of the neutrons emitted during fission can 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
In a chain reaction, the neutrons released during fission can trigger additional fission events, leading to a self-sustaining reaction. This is a key characteristic of nuclear reactors.
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Atomic nuclei contain protons and neutrons, with nuclear size, mass defect and binding energy describing their stability. The work covers alpha, beta and gamma decay, decay equations, half-life and decay rate, along with radiation safety and medical applications such as imaging, radiotherapy and tracers.
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