Assertion: semiconductor's electron | /r/HasProperty | bound to their atoms
Facets:
value: mostly
type: DEGREE
value: very tightly
type: MANNER
Source sentences:
text: The idea is that pure semiconductors conduct poorly, because the electrons in their lattice structure are mostly bound very tightly to their atoms, leaving only a few electrons free to move, from atom to atom, through the material, so forming a very weak electric current.