Assertion: silicon carbide's silicon | /r/HasAspect | small energy gap
Facets:
value: between its highest occupied energy levels
type: LOCATION
value: between the lowest unoccupied ones
type: LOCATION
Source sentences:
text: This arises because silicon has a small energy gap (band gap) between its highest occupied energy levels (the valence band) and the lowest unoccupied ones (the conduction band).