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Bismuth-214 has a half life of about 20 minutes. Find the amount of Bismuth-214 left from a 30-gram sample after 1 hour

 Sep 20, 2021
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Bismuth-214 has a half life of about 20 minutes. Find the amount of Bismuth-214 left from a 30-gram sample after 1 hour

 

R ==30 x  1/2^(60/20)

R ==30 x   o.125

R ==3.75 grams remain after 60 minutes, or 1 hour.

 Sep 20, 2021

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