Solution Found!
When cadmium oxide reacts to form cadmium selenide, a
Chapter 11, Problem 68P(choose chapter or problem)
When cadmium oxide reacts to form cadmium selenide, a change in unit cell occurs, as depicted below:
(a) What is the change in unit cell?
(b) Does the coordination number of cadmium change? Explain.
Questions & Answers
QUESTION:
When cadmium oxide reacts to form cadmium selenide, a change in unit cell occurs, as depicted below:
(a) What is the change in unit cell?
(b) Does the coordination number of cadmium change? Explain.
ANSWER:
Solution 68P
Here we have to find out the change in unit cell and does the coordination number of Cd change when the change in unit cell occurs.
Cadmium oxide reacts to form cadmium selenide, a change in unit cell occurs, as depicted below:
Step 1
(a) Here we have to find out what is the change in unit cell.
In the 1st structure, the ions of O2- and Cd2+ are organized separately in face-centered cubic structure. The second unit cell represented two face centered cubic arrays.
Hence the change in unit cell is form a sodium chloride structure in CdO to a zinc blende structure in CdSe.