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What are 'n' type semiconductors?...

What are 'n' type semiconductors?

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When silicon or germanium is doped with 15th group element i.e., As or P, the extra electron of the pentavalent atoms increases the conductivity of the semiconductors. This is called n-type semiconductors.
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Assertion (A) : Group- 15 -doped crystal of Si are called n -type semiconductors. Reason (R ) : Neutrons are responsible for the semi-conducting properties.

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SUBHASH PUBLICATION-THE SOLID STATE -PROBLEM SECTION
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