SOLUTION: The half-life of a radioactive isotope is the time it takes for a quantity of the isotope to be reduced to half its initial mass. Starting with 155 grams of a radioactive isotope,

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Question 1030480: The half-life of a radioactive isotope is the time it takes for a quantity of the isotope to be reduced to half its initial mass. Starting with 155 grams of a radioactive isotope, how much will be left after 3 half-life's?
Round to the nearest gram.

Answer by ikleyn(52834)   (Show Source): You can put this solution on YOUR website!
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The half-life of a radioactive isotope is the time it takes for a quantity of the isotope to be reduced to half its initial mass.
Starting with 155 grams of a radioactive isotope, how much will be left after 3 half-life's?
Round to the nearest gram.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~

It will be    after the first  half-life,
              after the second half-life,  and
              after the third  half-life.


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