Which of the following substances cannot be emitted by radioactive substances during their decay?
Correct answer: A. Protons
- A. Protons
- B. Neutrinos
- C. Helium nuclei
- D. Electrons
Explanation
Protons can never be emitted from a radioactive nucleus. Hence Option A is correct.
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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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