If a sample of iodine-131 contains 4.5 × 1016 nuclei, what

Chapter 32, Problem 91PP

(choose chapter or problem)

Problem 91PP

If a sample of iodine-131 contains 4.5 × 1016 nuclei, what is the activity of the sample? Express your answer in curies.

A. 0.27 Ci

B. 1.2 Ci.

C. 1.7 Ci

D. 4.5 Ci

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