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Type: Open-Ended
Category: Atomic Structure
Level: Grade 10
Tags: average atomic mass
Author: teachchemistry
Last Modified: 7 years ago

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Atomic Structure Question

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Grade 10 Atomic Structure

There are three isotopes of silicon. Si-28 has an atomic mass of 27.98 amu and an abundance of 92.21%, Si-29 has an atomic mass of 28.98 amu and an abundance of 4.70%, and Si-30 has an atomic mass of 29.97 amu and an abundance of 3.09%. Calculate the average atomic mass of silicon.