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Carbon , silicon and germanium have four...

Carbon , silicon and germanium have four valence electrons each . At room temperature which one of the following statements is most appropriate ?

A

The number of free conduction electrons is negligibly small in all the three

B

The number of free electrons for conduction is significant in all the three.

C

The number of free electrons for conduction is significant only in `Si` and `Ge` but small in `C`.

D

The number of free conductor electrons is significant in `C` but small in `Si` and `Ge`.

Text Solution

Verified by Experts

The correct Answer is:
C
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