truluv096 truluv096

20-05-2018
Chemistry

contestada

A radioactive isotope of potassium (K) has a half-life of 20 minutes. If a 40.0 gram sample of this isotope is allowed to decay for 80 minutes, how many grams of the radioactive isotope will remain?

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jeremytinsley4605 jeremytinsley4605

24-04-2019

Answer: 2.5 grams

Explanation:

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naomitribehg naomitribehg

03-03-2020

Answer:

A

Explanation:

A

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