CsBr crystallises in a body centered cubic lattice. The unit cell length is 436.6 pm. Given that the atomic mass of Cs = 133 and that of Br = 80 amu and Avogadro number being 6.02 $$ \times $$ 10²³ mol^$$-$$1, the density of CsBr is

The appearance of colour in solid alkali metal halides is generally due to

In a face-centered cubic lattice, a unit cell is shared equally by how many unit cells?

A compound formed by elements X and Y crystallizes in a cubic structure in which the X atoms are at the corners of a cube and the Y atoms are at the face-centers. The formula of the compound is :-