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Biology, 01.03.2021 17:10 bosanchez

If an isotope's half life is 2 months, and it starts with 240 grams. How many half life's does it take to only have 15 grams left? A. 2
B. 4
C. 6

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If an isotope's half life is 2 months, and it starts with 240 grams. How many half life's does it ta...

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