carbon , silicon and germanium have four...

carbon , silicon and germanium have four valence electrions each . The most appropriate statement for these elements

no. of free electrons for conduction is ssignificant in all three

no. of free electrons for condution is signifucant inly in Si and Ge but small in C

no. of free condutcion electrons is significant in C but small in Si and Ge

no. of free electrons is negligibly small in all three

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