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Chemistry, Science

10th -

12thgrade

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Half-Life

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10 questions

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  • 1. Multiple Choice
    2 minutes
    1 pt
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    What is the half-life of iodine-131?
    32 days
    8 days
    16 days
    24 days
  • 2. Multiple Choice
    30 seconds
    1 pt

    The % of the parent isotope remaining after 1 Half Life.

    50%

    25%

    12.5%

    6.25%

  • 3. Multiple Choice
    30 seconds
    1 pt

    The % of the parent isotope remaining after 2 Half Lives.

    50%

    25%

    12.5%

    6.25%

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