In a body-centered cubic $(BCC)$ unit cell,how many metal atoms surround the metal atom located at the center of the cell?

Determine the number of atoms per unit cell in a body-centered cubic $(BCC)$ unit cell.

The vacant space in the $bcc$ unit cell is .............. $\%$

$Na$ and $Mg$ crystallise in $b.c.c.$ and $f.c.c.$ type crystals respectively. The number of atoms of $Na$ and $Mg$ present in the unit cell of their respective crystals is:

Which of the following statements is incorrect for the rock salt type structure?

What is the coordination number of each atom in a $bcc$ structure?