QuestionFind the atomic weight of an element with isotopes: $120.9038 \mathrm{amu}$ (57.25\% abundance) and $122.8831 \mathrm{amu}$.

Studdy Solution
Calculate the atomic weight of the element.
$$\text{Atomic weight of element} =69.228 \, \mathrm{amu} +52.563 \, \mathrm{amu} =121.791 \, \mathrm{amu}$$The atomic weight of the element is $121.791 \, \mathrm{amu}$, which is closest to option1 $121.75 \, \mathrm{amu}$.