The $8:8$ type packing is present in which of the following?

Body centered cubic lattice has a coordination number of

In an ionic crystal with the general formula $AX$,if the coordination number is $6$,what will be the value of the radius ratio?

If the number of atoms per unit cell in a crystal is $2$,the structure of the crystal is:

The number of close neighbours in a body-centred cubic $(BCC)$ lattice of identical spheres is:

If the length of the body diagonal of a $FCC$ unit cell is $x \ \mathring{A}$, the distance between two nearest octahedral voids in the cell in $\mathring{A}$ is