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16 votes
16 votes
Element X is a radioactive isotope such that every 81 years, its mass decreases by half. Given that the initial mass of a sample of Element X is 1800 grams, how much of the element would remain after 28 years, to the nearest whole number?

User FantasticFiasco
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1 Answer

20 votes
20 votes

Answer:

1426

Explanation:

this question has been asked before and answered incorrectly but people corrected them in the comments.

User Fane
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