Asked by Eman

What is weighted average in chemistry?

Answers

Answered by DrBob222
The atomic weights of elements shown in the periodic table are weighted averages of the various isotopes. That means that if element X has a mass of 60 and it is 60% abundant and an isotope of mass 61 is 40% abundant, then the mass shown in the periodic table is averaged at 0.60(60) + 0.40(61) = 60.4
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