The half-life of radioactive element depends on:
Correct answer: B. Nature of element
- A. Temperature
- B. Nature of element
- C. Pressure
- D. Amount of radioactive substance
Explanation
The half-life of a radioactive element is primarily determined by the nature of the element itself. Each radioactive isotope has a specific and unique half-life, which is characteristic of that isotope. It is an inherent property of the radioactive element and is not influenced by other factors.T1/2λ = In2T1/2 =In2/λ
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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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