![quantum mechanics - How can electrons travel from the valence band into the conduction band? - Physics Stack Exchange quantum mechanics - How can electrons travel from the valence band into the conduction band? - Physics Stack Exchange](https://i.stack.imgur.com/Ym9JT.png)
quantum mechanics - How can electrons travel from the valence band into the conduction band? - Physics Stack Exchange
![State whether true or false:The highest occupied energy band is called the valence band and the lowest unoccupied energy band is called the conduction band. State whether true or false:The highest occupied energy band is called the valence band and the lowest unoccupied energy band is called the conduction band.](https://dwes9vv9u0550.cloudfront.net/images/5312654/425bffb9-8ea5-468d-a7e6-cfc8f808c467.jpg)
State whether true or false:The highest occupied energy band is called the valence band and the lowest unoccupied energy band is called the conduction band.
![semiconductor physics - Transitions between the conduction and valence band must have the same $k$-vector? - Physics Stack Exchange semiconductor physics - Transitions between the conduction and valence band must have the same $k$-vector? - Physics Stack Exchange](https://i.stack.imgur.com/wuHpH.png)