Chemistry, 18.01.2021 09:20, lorihab1970

There are three isotopes of X element (X): X-17 isotope: atomic mass17.2 amu, abundance:78.99%
X-18isotope: atomic mass 18.1 amu, abundance 10.00%
X-19isotope: atomic mass:19.1 amu, abundance: 11.01%
Calculate the average atomic mass of X.

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There are three isotopes of X element (X): X-17 isotope: atomic mass17.2 amu, abundance:78.99%