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The half-life of radon-222 is 3.824 days. After what time will one-fourth of a given amount of radon-222 remain?
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The half-life of radon-222 is 3.824 days. After what time will one-fourth of a given amount of radon-222 remain?

User Vink
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I think it is 3.232 because my teacher told me

User Matthew Vincent
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