Half-life of Radium-226 is:
Correct answer: B. 1620 years
- A. 1820 years
- B. 1620 years
- C. 1940 years
- D. 1680 year
Explanation
This is the correct half-life of Radium-226. Radium-226 has a half-life of approximately 1620 years, which means that after 1620 years, half of a given quantity of Radium-226 will have decayed into other elements.
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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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