Chapter 2.5, Problem 2.5AFP

Interpretation Introduction

Interpretation: Using the data given for naturally occurring isotopes of silicon, the atomic mass of silicon needs to be determined.

Concept Introduction: For the given naturally occurring isotopes of any element, the atomic mass of the element can be calculated by using the following formula:

  $A=M_{{}^{28}\text{Si}}\%A_{{}^{28}\text{Si}}+M_{{}^{29}\text{Si}}\%A_{{}^{29}\text{Si}}+M_{{}^{30}\text{Si}}\%A_{{}^{30}\text{Si}}$

Here, M is mass and %A is the percentage abundance of the respective isotope.