Exam-style question
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Which of the following best describes the nature of radioactive decay?.
- A.It is a predictable process.
- B.It occurs at a constant rate.
- C.It is random and follows an exponential decay law.
- D.It can be accelerated by temperature changes.
Model answer
What a good answer should say
- It is random and follows an exponential decay law.
Explanation
Why this works
Radioactive decay is a random process that does not depend on external factors and is described by an exponential decay law, indicating that the probability of decay is constant over time.
Common mistake
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