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In a silicon crystal each atom is surrounded by how many nearest neighbours?
ASix atoms
BEight atoms
CFour atoms
DTwo atoms
Answer & Solution
Correct answer: C. Four atoms
1. Silicon has a diamond-like structure.
2. Each atom shares its four valence electrons.
3. So it has four nearest neighbours.
_Source: NCERT Class 12 Physics Part II, Chapter 14, Semiconductor Electronics._
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