Please answer the following questions:
A. -------- energy is the name of the energy corresponding to the highest filled electron state at 0K?
B. Electrons in metals do not require any excitation before becoming conduction electrons that are free. True or false?
C. For nonmetallic materials, which of the following is true?
1. The wider the band gap, the higher the electrical conductivity at a given temperature.
2. The wider the band gap, the lower the electrical conductivity at a given temperature.
3. Can't say.
