The following diagram represents the electron population of the bands of MO energy levels for elemental silicon:

(a) Identify the valence band, conduction band, and band gap.

Video transcript

Hello everyone today. We are being given the following problem. The electron populations of the bands of molecular energy levels. For an element is illustrated in the graph below, determine the band gap conduction band and valence band. So the easiest one to pinpoint is going to be the band gap and that's going to be option two. or enter choice to simply put a band gap is just an energy difference between the two bands. So the two bands in this case is going to be the are going to be the valence and conduction band. Next, we're going to identify the conduction band, the conduction band, It's going to be Answice Choice three. This is going to be the conduction band and how we know this is because the conduction band contains the electrons that are necessary for conduction. So these are going to be higher and energy. And lastly we have the valence band which is answer choice one. And so this is the valence band. As the conduction band is higher in energy. The conduction band is going to be lower and energy. And so with that we have found our answers, conduction band band gap and valence band. Overall, I hope that this helped and until next time