Question

In a closed packed lattice containing n particles, the number of tetrahedral and octahedral voids respectively are :

• A. $n$ and $2n$
• B. $n$ and $3n$
• C. $2n$ and $n$
• D. $2n$ and $\frac{n}{2}$

Answer 1

The correct option is C $2n$ and $n$

Ans: - In a closed packet lattice containing n particles, the number of tetrahedral voids will be'2n' and the number of octahedral voids will be 'n' because tetrahedral voids are present at body diagonals(each having two) and octahedral voids are present at the center of the edge and at the body center.