Question detail
What is the significance of using a large sample when estimating half-life?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Atoms and nuclear radiation
Question
- A. It allows for more accurate predictions of decay
- B. It eliminates the randomness of decay
- C. It ensures that all nuclei decay simultaneously
- D. It reduces the need for calculations
Answer
The correct answer is A: It allows for more accurate predictions of decay.
Explanation
The correct answer is A: It allows for more accurate predictions of decay. This supports the learning objective "Explain why the half-life of a radioactive isotope can be estimated from a large sample." in Half-lives and the random nature of radioactive decay because it uses the correct atomic and nuclear radiation relationship for Atoms and nuclear radiation. The other options are less suitable because they do not match the required Half-lives and the random nature of radioactive decay idea: It eliminates the randomness of decay; It ensures that all nuclei decay simultaneously; It reduces the need for calculations.
Common mistake
Misunderstanding Half-Life Estimation
Students often think that the half-life of a radioactive isotope can be determined from a single measurement of activity rather than from a large sample over time.
Emphasize that half-life estimation requires multiple measurements to observe the decay pattern, allowing for a more accurate average half-life calculation.
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