The number of tetrahedral voids per unit cell in NaCl crystal is …�

1.	The number of tetrahedral voids per unit cell in NaCl crystal is ……..
Answer» 4 8 Twice the number of octahedral voids. Four TIMES the number of octahedral voids. Solution :NaCl has FCC arrangement of ` CL^(-)`ions. Hence, number of `Cl^(-)`ions in packing per UNIT cell = 4. NO. of tetrahdral voids is DOUBLE the number of octahedral voids. Hence, tetrahedral voids = 4.

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