Which Statement Regarding the Electronic Structure of Solids Is Not

question 50

Multiple Choice

Which statement regarding the electronic structure of solids is not correct?

• A) The band theory of solids is like molecular orbital theory in that the electronic wave function is delocalized to some extent over all the constituent atoms.
• B) In solids that are electrical insulators, there is a large gap between a filled valence band and a vacant conduction band.
• C) In semiconductors, the gap between the valence band and conduction band is small, so a few electrons have sufficient thermal energy to be found in the conduction band.
• D) n- and p-type semiconductors can be produced by doping a semimetal with an element from a different group.
• E) Germanium doped with arsenic is a p-type semiconductor.