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Mathematics, 21.06.2020 09:57 k211

The half-life of Radium-226 is 1590 years. If a sample contains 200 mg, how many mg will remain after 3000 years? (PLZ NEED HELP)

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The half-life of Radium-226 is 1590 years. If a sample contains 200 mg, how many mg will remain afte...
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