Practice Problem: Isotopic Abundance and Atomic Mass

Professor Dave explains how to calculate the average atomic mass of silicon using isotopic abundances. He provides the percentages of silicon isotopes and demonstrates the calculation process by multiplying each isotope's mass number by its abundance. The tutorial emphasizes the importance of significant figures in the final result, which is 28.1 atomic mass units. The video also suggests reviewing related tutorials on nuclide symbols and isotopes for better understanding.

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