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Physics 30

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The activity of a sample of a radioactive isotope is 1800Bq. If this isotope has a half-life of 16 days, what is the activity after 16 days?, 24 days?, and 60 days?

  • Physics 30 - ,

    Radioactivity is half as much (900 Bq) after 16 days. For other times t (in days), use the equation

    Activity = 1800 * (1/2)^(t/16)

    t/16 is an exponent.

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