Question detail

What is the unit of measurement for activity in radioactive decay?

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

  1. A. Joules
  2. B. Becquerels
  3. C. Grays
  4. D. Sieverts

Answer

Becquerels

Explanation

Activity is measured in becquerels (Bq), which represents one decay per second.

Common mistake

Understanding Randomness in Radioactive Decay

Students often believe that radioactive decay can be predicted for individual nuclei, thinking it follows a specific pattern.

Emphasize that radioactive decay is a random process, meaning it is impossible to predict when a specific unstable nucleus will decay.

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