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Strontium-90 has a half-life of about 28 years. after 112 years, how many grams of a 50 g sample will remain? a. 3.125 g b. 6.25 g c. 12.5 g d. 42.0 g

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Strontium-90 has a half-life of about 28 years. after 112 years, how many grams of a 50 g sample wil...

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