sum percent abundance = 100
% abundance of 26Mg = 100 - 79 - 10
Magnesium has three naturally occurring isotopes Mg-24, Mg-25, and Mg-26). The atomic mass and natural abundance of Mg-24 are 23.9850 amu and 79 %. respectively. The atomic mass and natural abundance of Mg -25 are 24.9858 amu and 10 %, respectively.
Find the natural abundance of Mg-26. Express your answer using two significant figures.
Find the atomic mass of Mg-26. Express your answer using two significant figures.
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