I know that insulators hold their valence electrons tightly, while conductors hold them loosely. But why? Is it because metals want to lose electrons, so they're held loosely?
2007-12-05 08:18:12 · 4 answers · asked by tobias 2 in Science & Mathematics ➔ Physics
Free Electrons promote conductivity. Materials with few free electrons do not promote conductivity.
2007-12-05 08:25:47 · answer #1 · answered by roy n 1 · 0⤊ 0⤋
Band gap. In solid metals, the electrons are in bands rather than noticeably discrete energy levels, and the gap between the top two is small: electrons easily go into the conduction band. In insulators, the band gap is higher.
2007-12-05 08:30:07 · answer #2 · answered by Anonymous · 0⤊ 0⤋
genuine, fake, genuine, fake. you're being asked that could nicely be appropriate inferences with regard to the residences of steel conductors in electric circuits. No. 4 would not factor out which way the resistance is going with variation of CSA. No. 2 would not factor out which way the resistance is going with version in length. So, the two are erroneous inferences.
2016-12-10 13:38:22 · answer #3 · answered by finnen 4 · 0⤊ 0⤋
If insulators did allow electricity through, they wouldn't be insulators.
2007-12-05 08:40:28 · answer #4 · answered by za 7 · 0⤊ 0⤋