Solve the problem.Radioactive carbon 11 has a half-life of 20 minutes. If there are 200 grams present at the start of our experiment, how many grams will remain after 10 minutes?
A. 50 g
B. 141.421 g
C. 6.931 g
D. 100 g
Answer: B
Mathematics
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A. 
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C. 
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