An element, X, has the following isotopic composition: X-200, 90%; X-199, 8.0%, and X-202, 2.0%. What is the average atomic mass?
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Average atomic mass = 200 * 90 + 199 * 8 + 202 * 2/100
= 199.96
= ~ 200
Hope this helps!
= 199.96
= ~ 200
Hope this helps!
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