1 votes 1 votes In an n-type silicon crystal at room temperature, which of the following can have a concentration of $4 \times 10^{19} \mathrm{~cm}^{-3}$ ? Silicon atoms Holes Dopant atoms Valence electrons Others gate2009-ec + – admin asked Sep 15, 2022 • edited Jan 30, 2023 by Lakshman Bhaiya admin 46.4k points 111 views answer comment Share Follow See all 0 reply Please log in or register to add a comment.