Question detail
Why is it 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
Why is it 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, and each nucleus has an equal probability of decaying at any moment, independent of other nuclei.
Explanation
This answer effectively explains the randomness of radioactive decay, which is a key concept in understanding nuclear processes. It tests the student's grasp of the nature of radioactive decay as outlined in the learning objective.
Common mistake
Misunderstanding Count Rate
Students often confuse count rate with total counts over time, thinking it represents the total number of counts detected rather than the rate at which counts are detected.
Emphasize that count rate is defined as the number of counts detected per second or per minute, and practice converting total counts into a rate by dividing by the time period.
Related flashcards
Flashcard 1 of 5
Related practice questions
Question 1 of 5
Choose an answer, get feedback, then move sideways through the set.