Which of the following is not radioactive?
Correct answer: D. All of these options are not radioactive
- A. Ozone
- B. Hydrogen
- C. Sodium
- D. All of these options are not radioactive
Explanation
Neither of the options are radioactive; the correct answer is D. The image shows the radioactive elements highlighted in the periodic table.
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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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