Draw the band diagram for a linear chain of F atoms. Do you expect this chain to be conducting, semiconducting, or insulating?

20. Solid-state chemical sensors are manufactured using semiconductors such as Si and Ge. Doping enhances the conductivity of Si. Which is NOT true for doping of silicon? a. Doping replaces some of the silicon atoms with atoms of different elements. b. Doping silicon with phosphorous enhances the conductivity of silicon by providing an extra conduction electron that is free to move through the crystal. c. Doping silicon with aluminum enhances the conductivity of silicon by creating a vacancy in the crystal called a hole, which behaves as a negative charge carrier. d. n-Type silicon has excess conduction electrons. e. p-Type silicon has excess holes. 21. When using ion-selective electrodes, to compensate for a complex or unknown matrix, the method can be used to determine the analyte concentration. a. calibration curve b. standard addition c. standardization d. least-squares analysis 22. Which potential error associated with a pH measurement is incorrectly defined? a. Junction potential…

Why is graphene unique?