Answer to Question #275353 in General Chemistry for Renee

Question #275353


If 200.0 g of an isotope decays to 25.0 g in 24.0 seconds, what is the half-life of this isotope?


1
Expert's answer
2021-12-06T17:38:04-0500

In 24.0 seconds the mass of an isotope halves 3 times. Therefore, its half-life is 24/3=8 seconds.


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