ryanncoburn ryanncoburn

19-04-2021
Mathematics

contestada

Element X is a radioactive isotope such that every 28 years, its mass decreases by
half. Given that the initial mass of a sample of Element X is 70 grams, how long
would it be until the mass of the sample reached 38 grams, to the nearest tenth of a
year?

Respuesta :

xxxalienturdxxx xxxalienturdxxx

23-04-2021

Answer:

21

Step-by-step explanation:

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