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Question
If the half-life of some radioactive element is 1 billion years, and a mass of rock originally contained 100 g of that element, how many grams of the radioactive element would be left after three billion years had passed?A) 6.25 g
B) 12.5 g
C) 25 g
D) 50 g
E) none
Answer
This answer is hidden. It contains 1 characters.
Related questions
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