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Silicon has three naturally occurring isotopes: Si-28 with mass 27.9769 amu and a natural abundance of 92.21%, Si-29 with mass 28.9765 amu and a natural abundance of 4.69%, and Si-30 with mass 29.9737 amu and a natural abundance of 3.10%. Calculate the atomic mass of silicon.

answer : ( )amu

Answers

Answered by DrBob222
mass*% + mass*% + mass*% = avg atomic mass Si.
use the fraction instead of %;i.e., use 0.9221 instead of 92.21%
Answered by shana
i don't know can you please help it is an summative from 32 please
Answered by Simone
28.09 amu
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