Chemistry, 04.05.2021 05:30 t779

A radioactive isotope of potassium (K) has a half-life of 20 minutes. If a 113 gram sample of this isotope is allowed to decay for 80 minutes, how many grams of the radioactive isotope will remain? a. 3.5 O b. 28.2 O c. 14.1 O d. 7.1

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A radioactive isotope of potassium (K) has a half-life of 20 minutes. If a 113 gram sample of this i...