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-   -   Half-Life (https://www.askmehelpdesk.com/showthread.php?t=521689)

  • Oct 31, 2010, 09:19 AM
    larry421
    Half-Life
    The half life of molybdenum-99 is 67 hours. A 200 ug quanity decays over time to 25mg.
    HOw much time has elapsed?
    Using the equation mf = mi (0.5)n
    log mf = log mi+n ( log 0.5 )
  • Oct 31, 2010, 09:22 AM
    Unknown008

    What have you done so far?

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