Heavy radioactive elements eventually turn into:
Correct answer: C. Lead
- A. Barium
- B. Hydrogen
- C. Lead
- D. Radium
Explanation
Many of the decay chains of heavy radioactive elements like Uranium and Thorium conclude with a stable isotope of lead. Lead nuclei are particularly stable, making them the common end-point for these long decay series.
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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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