Chemistry Isotopes Solution: Naturally occurring magnesium has an atomic mass o...

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Solution: Naturally occurring magnesium has an atomic mass of 24.312 and consists of three isotopes. The major isotope is 24Mg, natural abundance 78.99%, relative atomic mass 23.98504. The next most abundant isotope is 26Mg, relative atomic mass 25.98259. The third isotope is 25Mg whose natural abundance is in the ratio of 0.9083 to that of 26Mg.Find the relative atomic mass of 25Mg.