Answer to Question #140167 in Atomic and Nuclear Physics for Lily

Question #140167
If you start with 1000 nuclei of an isotope with a half-life of 12 days, after how long will there be 125 undecayed nuclei left?
1
Expert's answer
2020-10-25T18:31:07-0400

12 days – 500 undecayed nuclei left

24 days – 250 undecayed nuclei left

36 days – 125 undecayed nuclei left

Answer: 36 days

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