Mathematics, 02.11.2020 22:40, 721345

Element X is a radioactive isotope such that every 23 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 21 years, to the nearest whole number?

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Element X is a radioactive isotope such that every 23 years, its mass decreases by half. Given that...