SOLUTION: Bismut-214 has a half life of approximately 20 minutes. find the amount of bismuth-214 left from a 30 gram sample after 156 days.

Question 1051393: Bismut-214 has a half life of approximately 20 minutes. find the amount of bismuth-214 left from a 30 gram sample after 156 days.
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Bismut-214 has a half life of approximately 20 minutes. find the amount of bismuth-214 left from a 30 gram sample after 156 days.
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156 days = 3744 hours = 11232 20 minute periods.
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Amount = 30*(1/2)^11232
< 10^-99 grams
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Did you mean 156 hours?
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