Chemistry, 17.11.2020 20:10, domenicaBeBe2007

Assume element X has 2 isotopes: X-125 and X-126. For every 100 atoms of X, 30 of them have a mass of 125.0 u and 70 have a mass of 126.0 u. What is the average atomic mass of X?

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Assume element X has 2 isotopes: X-125 and X-126. For every 100 atoms of X, 30 of them have a mass o...