Which statement is true regarding a semi-conductor (Ge) doped with arsenic (As)?
ID: 1067428 • Letter: W
Question
Which statement is true regarding a semi-conductor (Ge) doped with arsenic (As)? Electrons are removed creating an "acceptor level" that is close in energy to the conduction band. This increases conductivity. Electrons are added in a "donor level" that is close in energy to the conduction band. This increases conductivity. Electrons are added in an "acceptor level" that is close in energy to the valence band. This decreases conductivity. Electrons are added in a "donor level" that is close in energy to the valence band. This increases conductivity. Electrons are removed from the "acceptor level" that is close in energy to the conduction band. This decreases conductivity. Which statement best explains why hexane, C_6H_14, is not soluble in water?Explanation / Answer
As has 5 valence electron which form 4 bonds with Ge with 4 electrons and 1 electron is left behind. It is given to donar level and the conduction is made so the answer is
B )
Electrons are added in a “donar level “ that is close in energy to the valence band. This decreases conductivity.
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