How does tungsten most common isotope relate to the average atomic mass of the element

It has the most quantitative effect on the average atomic mass of the element.

Explanation:

Tungsten's most common isotope will have the most quantitative effect on the average atomic mass.

The most common isotope of tungsten will represent its most abundant isotope.

The isotope with the most geonormal abundance will have the highest effect on the average atomic mass of an element.

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