Which of the following expressions is correct in the case of a sodium chloride unit cell (edge length, `a`)?A. `r_(c)+r_(a)=a`B. `r_(c)+r_(a)=a/2`C. `r_(c)+r_(a)=2a`D. `r_(c)+r_(a)=sqrt(2)a`

Which of the following expressions is correct in the case of a sodium

1.	Which of the following expressions is correct in the case of a sodium chloride unit cell (edge length, `a`)?A. `r_(c)+r_(a)=a`B. `r_(c)+r_(a)=a/2`C. `r_(c)+r_(a)=2a`D. `r_(c)+r_(a)=sqrt(2)a`
Answer» Correct Answer - B

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Which of the following expressions is correct in the case of a sodium chloride unit cell (edge length, `a`)?A. `r_(c)+r_(a)=a`B. `r_(c)+r_(a)=a/2`C. `r_(c)+r_(a)=2a`D. `r_(c)+r_(a)=sqrt(2)a`

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