An element crystallizes in a $bcc$ lattice. The number of nearest neighbors of the element is

The number of unit cells in $58.5 \ g$ of $NaCl$ is nearly

$Zn$ transforms from its solid state to its molten state. What is its coordination number in the molten state?

If the edge length of a cubic unit cell in an $fcc$ structure is $620 \ pm$, then the atomic radius of the element will be ............... $pm$.

Explain the calculation of the number of atoms in a primitive cubic unit cell.

In an ${A^{+}}{B^{-}}$ ionic compound, the radii of ${A^{+}}$ and ${B^{-}}$ ions are $180 \ pm$ and $187 \ pm$ respectively. The crystal structure of this compound will be: