Question

Would you expect CsBr\mathrm{CsBr} to have the sodium chloride, zincblende, fluorite, or caesium chloride structure? Based on your answer, Find (a) the lattice parameter; (b) the density; and (c) the packing factor.

Solution

Verified
Answered 1 year ago
Answered 1 year ago
Step 1
1 of 7

To determine which of the structures would CsBrCsBr be expected to have, first we have to determine the ionic radius ratio: From Appendix B we read the values:

rCs+=1.67A˚r_{Cs^{+}}=1.67\mathring A rBr=1.96A˚r_{Br^{-}}=1.96\mathring A

The radius ratio is:

rCs+rBr=1.671.96=0.852\dfrac{r_{Cs^{+}}}{r_{Br^{-}}}=\dfrac{1.67}{1.96}=0.852

Since 0.732<0.852<10.732<0.852<1, the coordination number of each ion is 8, and the CsCl structure is possible.

Create an account to view solutions

By signing up, you accept Quizlet's Terms of Service and Privacy Policy
Continue with GoogleContinue with Facebook

Create an account to view solutions

By signing up, you accept Quizlet's Terms of Service and Privacy Policy
Continue with GoogleContinue with Facebook

More related questions

1/4

1/7