Asked by Ella
A scientist found a 80 gram fossil containing uranium-238. Uranium-238 breaks down into Lead-206 over time. Her test indicates that the Uranium-238 has gone through 3 half-lives. How many grams of the fossil is now made of Lead-206?
Answers
Answered by
R_scott
3 half-lives means that ... (1/2)^3 of the uranium remains
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