A sample of Ok (a hypothetical element from Oklahoma) decays by positron emission and has a half-life of 67 years. How

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answerhappygod
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A sample of Ok (a hypothetical element from Oklahoma) decays by positron emission and has a half-life of 67 years. How

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A sample of Ok (a hypothetical element from Oklahoma) decays by
positron emission and has a half-life of 67 years. How many
years are necessary for a sample of this radioisotope to be reduced
by 65%? Enter your answer to the nearest year.
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