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Discussion :: Materials and Components

  1. The number of valence electrons in donor impurity are

    2. A.
    5
    B.
    4
    C.
    3
    D.
    1

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    Answer : Option A

    Explanation :

    Donor impurity has 5 valence electrons (while silicon has 4 valence electrons).

    Hence donor impurity can donate electrons.

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