Respuesta :

What is the activity of a source that emits 1,200 particles per minute?

[tex]\boxed{ B. \:20 \:Bq }[/tex]

Explanation:

20 Bq is the activity of a source that emits 1,200 particles per minute. Activity is the number of decays per second. The SI unit for activity is becquerel (Bq).

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Answer:

B) 20 Bq

The activity of a source that emits 1,200 particles per minute is 20 Bq.

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