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The half-life of a radioactive element is 1250 years. What percent of atoms remain after 7500 years?

The half-life of a radioactive element is 1250 years. What percent of atoms remain after 7500 years?
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The half-life of a radioactive element is 1250 years. What percent of atoms remain after 7500 years?

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User Simant
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The percent of atoms left are 6.25%
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User Silmathoron
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