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Problem- The half-lives of different radioisotopes are given in the table below. How long would it take (in minutes) for the amount of argon-44 to decrease from 88.0 mg to 11.0 mg?
argon-44;half life 12
lead-196;half-life 37
potassium-44;half-life 22
indium-117; half-life 43
Show all work, use additional paper if necessary.
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