Question

C and Si both have same lattice structure, having 4 bonding electrons in each. However, C is insulator whereas Si is intrinsic semiconductor. This is because

Answer 1

Explanation:

The four bonding electrons in the case of C lie in the third orbit, whereas for Si they lie in the fourth orbit.

Answer 2

carbon and silicon have same lattice structure having four bonding electrons in each but carbon is insulator because the band gap between the conduction band and the valence band in carbon atom is very high due to which the valence electrons from Valence band cannot move to conduction band and for Silicon the band gap between valence band and conduction band is is 1.1 electron volt which is comparatively very less so electrons from Valence band could transfer in conduction band and acts as intrinsic semiconductor