Which of the following is trivalent impurity

Electrical Engineering XYZ MCQs

Which of the following is trivalent impurity:

  1. Boron
  2. Antimony
  3. Silicon
  4. None of the above

Correct answer: 1. Boron

Explanation: Trivalent impurities refer to impurities that have three valence electrons. Valence electrons are the electrons in the outermost shell of an atom, which are involved in bonding.

Boron is a trivalent impurity because it has three valence electrons. It typically substitutes for silicon in silicon crystal lattices, making it an important dopant in semiconductor technology.

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