Atoms, Molecules, and Ions (Chem AP)

The element zinc consists of five isotopes with masses 63.929, 65.926, 66.927, 67.925, and 69.925 amu. The relative abundances of these fiveisotopes are 48.89, 27.81, 4.110, 18.57, and 0.62 percent, respectively. From these data calculate the average atomic mass of zinc.

(in the right significant number)


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