The half-life of Palladium-100 is 4 days. After 12 days a sample of Palladium-100 has been reduced to a mass of 4 mg. What was the initial mass (in mg) of the sample?      mg. What is the mass 8 weeks after the start?      mg.

Intermediate Algebra
19th Edition
ISBN:9780998625720
Author:Lynn Marecek
Publisher:Lynn Marecek
Chapter10: Exponential And Logarithmic Functions
Section: Chapter Questions
Problem 446RE: The half-life of radioactive iodine is 60 days. How much of a 50 mg sample will be left in 40 days?
Question

The half-life of Palladium-100 is 4 days. After 12 days a sample of Palladium-100 has been reduced to a mass of 4 mg.

What was the initial mass (in mg) of the sample?      mg.

What is the mass 8 weeks after the start?      mg.

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