You are watching: How many valence electrons are present in silicon
∴ Silicon has 4 valence electrons.
The material which is not a good conductor or a good insulator is called the semiconductor.
Example: Silicon, Germanium, etc.
Types of semiconductor:
Intrinsic semiconductors: It is an undoped semiconductor or pure semiconductor without adding any impurity
Non-intrinsic or extrinsic semiconductor: It is a semiconductor that is doped with a specific impurity that can modify its electrical properties, making it suitable for electronic applications (diodes, transistors, etc.)
Note: Depending upon the impurity added nonintrinsic semiconductors can be classified into P-type and N-type semiconductors depending on whether the semiconductor is rich in holes or electrons.
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