Question detail
Explain why it is impossible to predict when an individual unstable nucleus will decay.
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
Question
Type
exam_style
Style
Topic
Atoms and nuclear radiation
Question
Explain why it is impossible to predict when an individual unstable nucleus will decay.
Answer
It is impossible to predict when an individual unstable nucleus will decay because radioactive decay is a random process. Each nucleus has a certain probability of decaying over a given time period, but the exact moment of decay cannot be determined.
Explanation
This question assesses the understanding of the random nature of radioactive decay, emphasizing the unpredictability of individual decay events. It highlights the fundamental concept of randomness in nuclear physics.
Common mistake
Misunderstanding Half-Life Calculation
Students often confuse the half-life with the total decay time, thinking it represents the entire duration for a sample to decay completely.
Emphasize that half-life is the time taken for half of the radioactive nuclei to decay, not the time for the entire sample to decay.
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