Problem 1Silicon has three naturally-occurring isotopes: 92.23% of 28Si, with an atomic weight of27.9769 amu, 4.68% of 29Si, with an atomic weight of 28.9765 amu, and 3.09% of 30Si,with an atomic weight of 29.9738 amu. On the basis of these data, confirm that the averageatomic weight of Si is 28.0854 amu.

Abundance( in %) Fractional Abundance Atomic weight…

Answered: Silicon has three naturally-occurring…

Silicon has three naturally-occurring isotopes: 27.9769 amu, 4.68% of 29Si, with an atomic with an atomic weight of 29.9738 amu. On the

Modern Physics

3rd Edition

ISBN:9781111794378

Author:Raymond A. Serway, Clement J. Moses, Curt A. Moyer

Publisher:Raymond A. Serway, Clement J. Moses, Curt A. Moyer

Chapter9: Atomic Structure

Section: Chapter Questions

Problem 7Q

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The Bohr model

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Question

Problem 1
Silicon has three naturally-occurring isotopes: 92.23% of 28Si, with an atomic weight of
27.9769 amu, 4.68% of 29Si, with an atomic weight of 28.9765 amu, and 3.09% of 30Si,
with an atomic weight of 29.9738 amu. On the basis of these data, confirm that the average
atomic weight of Si is 28.0854 amu.

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