Chemistry, 28.10.2020 01:10 alananicoleee
An unknown element is found with the following isotopic percent abundance: X-20 is found at an abundance of 90.50%, X-21 is found at an abundance of .27%, and X-22 is found at an abundance of 9.23%. Given this information find the average atomic mass of the element. (show your work for full credit.)
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An unknown element is found with the following isotopic percent abundance: X-20 is found at an abund...
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