The radioactive isotope sodium - 2 4 is used as a tracer to measure the rate of
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Question:
The radioactive isotope sodium is used as a tracer to measure the rate of flow in an artery or vein. The halflife of sodium is hours. Suppose that a hospital buys a g sample of sodium
a How much of the sample will remain after hours? Round your answer to two decimal places.
b How long will it be until only gram remains? Round your answer to the nearest whole number.
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