The half-life of a radio-active element is that period in which half of the atoms?
Correct answer: D. Decay
- A. Diffuse
- B. Decompose
- C. Disturbed
- D. Decay
Explanation
The term "decay" is the correct option. The half-life of a radioactive element is the time it takes for half of the radioactive atoms in a sample to decay or transform into other elements or isotopes. This is a fundamental property of radioactive substances, and the concept of half-life is essential for understanding radioactive decay processes.
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About Half-life and Rate of Decay
Half-life is the time required for half the unstable nuclei in a sample to decay, and it remains constant for a particular radioactive nuclide. Questions use the exponential decay law, decay constant, activity, remaining quantity and mean life. Radioactive decay is random for individual nuclei but predictable for large samples.
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