Question #142014
Compute the average atomic mass of gallium, if 60.0% of the gallium atom occurring in nature have mass number 69 and 40.0% of the items have mass number 71.
1
Expert's answer
2020-11-04T14:18:47-0500

average atomic mass = (60 * 69 + 40 * 71)/100 = 69.8


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