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Chemistry, 02.01.2020 21:31 briannawilliams893

The half-life of radium-226 is 1590 years. if a sample contains 100 mg, how many mg will remain after 4000 years?

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The half-life of radium-226 is 1590 years. if a sample contains 100 mg, how many mg will remain afte...
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