Textbook Question
Two solids are shown below. One is a semiconductor and one is an insulator. Which one is which? Explain your reasoning.
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Two solids are shown below. One is a semiconductor and one is an insulator. Which one is which? Explain your reasoning.
For each of the two-dimensional structures shown here (a) draw the unit cell (i)
(ii)
(b) What is the coordination number of each cannonball in the interior of the stack?
Which arrangement of cations (yellow) and anions (blue) in a lattice is the more stable? Explain your reasoning. (a)
(b)
Which of these molecular fragments would you expect to be more likely to give rise to electrical conductivity? Explain your reasoning. (a)
(b)