In a body-centered cubic $(BCC)$ unit cell,the atom at the body center is shared by how many unit cells?

$A$ certain metal crystallizes in a $bcc$ lattice. The distance between the nearest neighbours is $433 \text{ pm}$. The distance between the next nearest neighbours is :- .............. $\text{pm}$

In which of the following structures,the anion has the maximum coordination number?

Which of the following expressions is correct for a sodium chloride $(NaCl)$ unit cell with edge length $a$?

Which of the following statements is incorrect?

In a face-centered cubic $(FCC)$ lattice,$A$ atoms are present at the corners and $B$ atoms are present at the face centers. If one $B$ atom is removed from one of the face centers,what will be the molecular formula of the compound?