A trivalent impurity has_____

A trivalent impurity has_____

Right Answer is:

3 Valence electrons


A trivalent atom, the one that has three valence electrons is called an acceptor or recipient. Each acceptor produces one hole in a silicon crystal. In a p-type semiconductor, the holes are the majority carriers, while the free electrons are the minority carriers because of the holes outnumber the free electrons.

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