If 18 g of a radioactive substance are present initially and 7 yr later only 9 g

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If 18 g of a radioactive substance are present initially and 7 yr later only 9 g remain, how much of the substance will be present after 9 yr?

Posted Date: Jun 24, 2024 10:10 AM

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If 18 g of a radioactive substance are present initially and 7 yr later only 9 g

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