The unit of radio activity is curie which is equal to:
Correct answer: A. 3.7 x 10^10 disintegration / s
- A. 3.7 x 10^10 disintegration / s
- B. 3.7 disintegration / s
- C. 7.3 disintegration / S
- D. None
Explanation
As such, 1 Ci is equal to 37 billion (3.7 x 1010) disintegrations per second, so 1 Ci also equals 37 billion (3.7 x 1010) Bequerels (Bq). A curie is also a quantity of any radionuclide that decays at a rate of 37 billion disintegrations per second (1 gram of radium, for example).
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