The curie, a unit of radioactivity, is equal to how many disintegrations per second?
Correct answer B. 3.70 × 10¹⁰ disintegrations per second
Explanation
One curie was originally based on the activity of one gram of radium-226 and is defined as exactly 3.70 × 10¹⁰ disintegrations per second, or 3.7 × 10¹⁰ becquerels.
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