SOLUTION: The half-life of the radioactive element unobtanium-29 are initially present, how many grams are present after 20 seconds? 40 seconds? 60 seconds? 80 seconds? 100 seconds?
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-> SOLUTION: The half-life of the radioactive element unobtanium-29 are initially present, how many grams are present after 20 seconds? 40 seconds? 60 seconds? 80 seconds? 100 seconds?
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Question 865071: The half-life of the radioactive element unobtanium-29 are initially present, how many grams are present after 20 seconds? 40 seconds? 60 seconds? 80 seconds? 100 seconds?
The amount left after 20 seconds is __ grams.
Almost done with my homework! This is a tough one! Thank you for the help! Answer by Alan3354(69443) (Show Source):
