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  • 02-12-2017
  • Chemistry
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The half-life of an element is 200 years. If a 30 gram sample was originally deposited, how much is left after 200 years? Question 2 options: 10 grams 15 grams 30 grams 60 grams
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  • 02-12-2017
the gram that will be left is 15grams
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