An element has two naturally-occurring isotopes. The mass numbers of these isotopes are 115.00 u and 117.00 u, with natural abundances of 25% and 75%, respectively. Calculate its average atomic mass. Report

asked Mar 8, 2023 108k views

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$(115.00)(0.25)+(117.00)(0.75)=\boxed{116.50 \text{ u}}$

Earth answered Mar 15, 2023

by Earth

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