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Mathematics, 13.06.2020 03:57 20eppsj

Element X is a radioactive isotope such that every 14 years, its mass decreases by
half. Given that the initial mass of a
sample of Element X is 80 grams, how
much of the element would remain after
18 years, to the nearest whole number?

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Element X is a radioactive isotope such that every 14 years, its mass decreases by
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