Leisschdeadabee Leisschdeadabee

24-10-2016
Chemistry

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if 165. mg of fluorine-18 is shipped at 8:00 a.m., how many milligrams of the radioisotope are still active after 330 min ?

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syed514 syed514

01-11-2016

330 minutes =5 hours and 30 minutes= 3 half life's
After 1 - 62.5
After 2 - 31.15
After 3 - 15.625
hope it helps

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