edge length of unit cell

Started by adharshni, April 13, 2020, 04:09:02 AM

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adharshni

April 13, 2020, 04:09:02 AM
In this question shouldnt edge length be
2(radius of cl)+(radius of cs+) divided by root 3

uma

#1
April 18, 2020, 08:12:51 AM
CsCl is BCC cubic lattice packing
in this case  edge length (a) = 4r/ (3)^1/2
But 4r = 2r(Cl-) +2r(Cs+)
use above equation and plugin given values of Cs+ ion and Cl- radii given in the question.
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