Rate of decomposition of a certain substance

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Radioactive materials are often used in biological studies. A radiation biologist studies the rate of decomposition of a certain substance and obtains the following data:

Time (days)

0

4.0

8.0

12.0

16.0

Mass (μg)

20.20

16.08

12.80

10.19

8.11

How many micrograms will remain after 28 days?

Reference no: EM131430442

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