half-life of molybdenum?

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confusedkid asked:


the half-life of molybdenum-99 is 67.0 hours. how much of a 1.000mg sample remains after 335 hours?

Elmo Live

This entry was posted on Thursday, October 30th, 2008 at 4:27 am and is filed under Chemistry. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

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One Response to “half-life of molybdenum?”

  1. Dr.A Says:
    November 1st, 2008 at 1:38 pm

    335 / 67 = 5
    After 1 half-life we have 0.5 mg
    After 2 half-life we have 0.25 mg
    after 3 half-life we have 0.125 mg
    after 4 half-life we have 0.0625 mg
    after 5 half-life we have 0.0313 mg

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