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A radioactive element has a half-life of 10 days. If 800 g of the element are now available in a laboratory, how much will remain after 25 days?

A radioactive element has a half-life of 10 days. If 800 g of the element are now available in a laboratory, how much will remain after 25 days?
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A radioactive element has a half-life of 10 days. If 800 g of the element are now available in a laboratory, how much will remain after 25 days?

User Mike Jarvis
by
7.9k points

1 Answer

5 votes
Total half lives (n) = 25/10=2.5T
Ending amount= Beganing amount/2^n
= 800/2^2.5
= 141.41g

User Hiery Nomus
by
8.2k points
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