schooly13 schooly13

19-11-2021
Physics

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Barium-122 has a half-life of 2 minutes. A fresh sample weighing 80 g was obtained. If it takes 10 minutes to set up an experiment using barium-122, how much barium-122 will be left when the experiment begins?

A. .25
B. 2.5
C. 5
D. 20

Respuesta :

xtrj88pzw4 xtrj88pzw4

20-11-2021

C.5
I believe that is the answer

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