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    Exam 19: Nuclear Chemistry
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    Strontium-90 Has a Half-Life of 28
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Strontium-90 Has a Half-Life of 28

Question 118

Question 118

Short Answer

Strontium-90 has a half-life of 28.8 years.How much strontium-90 was present initially, if after 144 years 10.0 g remain?

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