Asked by troubled student

Chemical analysis of a silicon crystal reveals gallium at a level of 3.091×10−2 atomic percent. Assuming that the concentration of thermally excited charge carriers from the Si matrix is negligible, what is the density of free charge carriers (free carriers/cm3) in this Si crystal?
Answered by babol
Can't get it right as well. Can aoneone provide some info ? This looks easy but i think my numbers are wrong
Answered by Hi
Use the Method used in H4P2.
Answered by someguy
As its Si: 5.00*10^22 / (gallium level*10^-2)

so for you: 1.5455*10^19
Answered by Odesa
Thank you someguy
Answered by Ankur
Chemical analysis of a silicon crystal reveals gallium at a level of 3.091×10−5 atomic percent. Assuming that the concentration of thermally excited charge carriers from the Si matrix is negligible, what is the density of free charge carriers (free carriers/cm3) in this Si crystal?
Answered by qwerty
What is the formula? please
Answered by MIT2
CHEAT!

Do NOT help this person. They are trying to cheat in a midterm exam.
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