# Is the valence band neutral?

While studying about band theory of semiconductors, I observed that when the electrons were excited from the valence band to the conduction band, they left behind holes in the valence band. From my existing knowledge, I believe that the valence electrons alone occupy the valence band which tells me the valence band is negative. For the holes to exist, the valence band has to be neutral. So, why is the valence band neutral?

If my reason for the valence band to be negative was wrong, I would like to know the reason.

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I think if you look at the overall structure is neutral. I don't think that has much sense take valence band it self... –  G M Apr 5 at 17:47