Question

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Answer 1

Hey there. Sorry, I really didn't get the question, but let me see, if you were asking about conductors and insulators, I am happy to explain. Let me help you out. Feel free to point me out :)
Usually, there are two bands namely, conduction band and valence band. Based on those,

Conductors:
In a conductor, the valence band is partially filled or it overlaps with a higher energy unoccupied band called conduction band. So electrons can flow easily into conduction band under an applied electric field and shows higher conductivity

Insulators:
On the other hand, in the case of an insulators, the valence band is fully filled and there is a large gap between the valence band and conduction band. So, electrons cannot jump to conduction band and such substance has very small conductivity

Hope it helped :)