Which of the following expression is correct for a CsCl unit cell with

1.	Which of the following expression is correct for a CsCl unit cell with lattice parameter,a?
Answer» `r_(cs+)+r_(cl^(-))=2a` `r_(cs+)+r_(cl^(-))=(a)/(sqrt2)` `r_(cs+)+r_(cl^(-))=(SQRT3)/(2)a` `r_(cs+)+r_(cl^(-))=(3)/(2)a` Solution :(c ) CSCL crystal has bcc STRUCTURE, ` Rightarrow r_(Cs)+r_(Cl^(-))+(sqrt3)/(2)a`

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