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QUESTION
Fluorine-18, which has a half-life of 110min, is used in PET scans.If 105mg of fluorine-18 is shipped at 8:
Fluorine-18, which has a half-life of 110min, is used in PET scans.If 105mg of fluorine-18 is shipped at 8:00 A.M., how many milligrams of the radioisotope are still active if the sample arrives at the radiology laboratory at 1:30 P.M. ?
