5. The half-life of a radioactive substance is 500 years. If there is 13 grams initially, how much material will remain after 800 years?

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23 votes

Answer:

4.2884007100119

Explanation:

remaining amount = inital amount * (1/2)^(time elapsed/half life)

13 (1/2)^(800/500) = 4.2884007100119

JFPicard answered Nov 7, 2023

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