Radioactive materials can be identified by measuring their:
Correct answer: C. Half-life
- A. Hardness
- B. Mass
- C. Half-life
- D. Total life
Explanation
The half-life of a radioactive material is a characteristic property that can be measured to identify and quantify the radioactive substance. It represents the time required for half of a sample of radioactive material to undergo 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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