Which of the following expression is correct in case of a sodium chloride unit cell (edge length... VIDEO
Which of the following expression is correct in case of a sodium chloride unit cell (edge length, a)?
(a) \( r_{c}+r_{a}=a \)
(b) \( r_{c}+r_{a}=a / 2 \)
(c) \( r_{c}+r_{a}=2 a \)
(d) \( r_{c}+r_{a}=\sqrt{2} a \)
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