Question
Strontium-90 is radioactive and has a half life of 28.8 years. How much of a 5.20 mg sample would be left after 127. years?
Round your answer to 2 significant digits. Also, be sure your answer has a unit symbol.

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Strontium-90 is radioactive and has a half life of 28.8 years. How much of a 5.20 mg sample would be left after 127. years? Round your answer to 2 significant digits. Also, be sure your answer has a unit symbol.

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