sarahjemaMalovettw sarahjemaMalovettw
  • 16-05-2017
  • Chemistry
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How many half-lives must elapse until 81 % of a radioactive sample of atoms has decayed?

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YourDailyDrug
YourDailyDrug YourDailyDrug
  • 16-05-2017
2.23 half-lives must elapse.
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