14. If one half-life is the amount of time it takes for a radioactive isotope to decay by a factor of 2, approximately which percent d

Question

14. If one half-life is the amount of time it takes for a radioactive isotope to decay by a factor of 2,
approximately which percent describes how much of the initial quantity of a substance would
remain after 2.3 half-lives?

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Tài Đức 5 years 2021-09-03T05:43:32+00:00 2 Answers 27 views 0

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  1. binhan
    0
    2021-09-03T05:44:54+00:00
    Reply

    Since the equation for amount remaining is (1/2)^n, where n stand for the number of half lives, after 2.3 half lives the equation is (1/2)^2.3. This makes the answer about   1/4.92, which converts to about 20% of the original amount.

  2. Farah
    0
    2021-09-03T05:45:23+00:00
    Reply

    Answer:

    Since the equation for amount remaining is (1/2)^n, where n stand for the number of half lives, after 2.3 half lives the equation is (1/2)^2.3. This makes the answer about   1/4.92, which converts to about 20% of the original amount.

    Explanation:

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )