The radioactive element when decays to the first half life the new element is called:
Correct answer: A. Daughter element
- A. Daughter element
- B. Modified element
- C. Radioactive element
- D. All of these
Explanation
a) Daughter element: This option suggests that when a radioactive element decays to its first half-life, the new element formed is called the daughter element. This is correct. During radioactive decay, the parent radioactive element transforms into a new element, known as the daughter element. The daughter element may itself be radioactive and undergo further decay.
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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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