Question #5ef03

1 Answer

May 22, 2017

#24g Eu#

Explanation:

If the half-life of the #Eu# nuclide is #13y#, and time given is #26y#, there are #26/13 = 2# half-lives in the time interval. That is, the mass of the #Eu# nuclides will decrease by #1/2# twice and thus decrease by a factor of #1/4#.

#1/4 xx 96g = 24g#

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Question #5ef03

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