Approximately how long does it take a sample of francium-223 to decay by 50%?
A. 80 minutes
B...
Mathematics, 07.04.2021 19:40 rubyhart522
Approximately how long does it take a sample of francium-223 to decay by 50%?
A. 80 minutes
B. 100 minutes
C. 20 minutes
D. 40 minutes
Answers: 3
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