A Radiation Lab Orders 64 μCi of P-32

question 55

Multiple Choice

A radiation lab orders 64 μCi of P-32.After 42.9 days the activity of the sample is 8.0 μCi.What is the half-life of P-32?

• A)7.15 days
• B)14.3 days
• C)28.6 days
• D)42.9 days
• E)85.8 days

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