29 Naturally occurring silicon consists of 20Si (27.9769 amu), 2Si (28.9765 amu) and 30 Si (29.9738 amu). The natural abundance of Si is 4.67%. If a precise periodic table shows 28.0855 amu for silicon, what are the natural abundances of 28 Si and 30 Si? a) 47.67% 28Si and 47.67% 30 Si b) 68.47% 28Si and 26.85% 30 Si c) 92.23% 2Si and 3.10% 30 Si d) 93.71% Si and 1.62% 30 Si

29 Naturally occurring silicon consists of 20Si (27.9769 amu), 2Si (28.9765 amu) and 30 Si (29.9738 amu). The natural abundance of Si is 4.67%. If a precise periodic table shows 28.0855 amu for silicon, what are the natural abundances of 28 Si and 30 Si? a) 47.67% 28Si and 47.67% 30 Si b) 68.47% 28Si and 26.85% 30 Si c) 92.23% 2Si and 3.10% 30 Si d) 93.71% Si and 1.62% 30 Si

Chemistry: An Atoms First Approach

2nd Edition

ISBN:9781305079243

Author:Steven S. Zumdahl, Susan A. Zumdahl

Publisher:Steven S. Zumdahl, Susan A. Zumdahl

Chapter5: Stoichiometry

Section: Chapter Questions

Problem 40E: Assume silicon has three major isotopes in nature as shown in the table below. Fill in the missing...

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