Nuclear fission experiments show that the neutrons split the uranium nuclei into two fragments of about the same size. This process is accompanied by the emission of several
Correct answer: B. neutrons
- A. protons and positrons
- B. neutrons
- C. alpha particles
- D. protons and alpha particles
Explanation
B is the right option because In nuclear fission, when a uranium nucleus absorbs a neutron, it becomes unstable and splits into two smaller nuclei, known as fission fragments. Along with the fission fragments, several neutrons are also emitted. These neutrons can go on to induce further fission reactions in other uranium nuclei, leading to a chain reaction.
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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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