The Half-Life of ¹³¹I Is 8

question 47

Multiple Choice

The half-life of ¹³¹I is 8.04 days. Three days after it was prepared, its activity was 0.50 μCi. How many curies (in μCi) were initially prepared?

• A) .60
• B) .70
• C) .65
• D) .55
• E) .39

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