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Physics, 19.05.2021 21:00, MaddieXMooo990
The half-life for an 80-gram sample of an unknown radioactive element is 5 days. how much of the unknown radioactive element remains after 10 days have passed?
A.20g
B.40g
C70g
d80g
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Answers: 2
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The half-life for an 80-gram sample of an unknown radioactive element is 5 days. how much of the unk...
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