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29 November, 06:43

A 40.0 milligram sample of 33p decays to 10.0 milligrams in 50.0 days. What is the half life of 33p?

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  1. 29 November, 07:07
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    half life = 25 days

    Explanation:

    Given dа ta:

    Total amount of sample = 40 mg

    Sample left after 50 days = 10 mg

    Half life of P³³ = ?

    Solution:

    1st step:

    when time is zero = 40 mg

    1 half life = 40/2 = 20 mg

    2 half life = 20 / 2 = 10 mg

    2nd step:

    Elapsed time / half life = HL

    half life = 50 days / 2

    half life = 25 days
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