Which statement about atoms arranged in a body-centered cubic (bcc) crystal structure is correct?

A metal, under different sets of conditions, can crystallise in a face-centred cubic (fcc) structure with a unit cell edge length of 3.5Å and in a body-centered cubic (bcc) structure with a unit cell edge length of 3.0Å . Find the ratio of the densities of fcc and bcc structures.

In Body centered cubic structures the atoms are not present at?

In a body centred cubic structure, the space occupied is about

The edge length of unit cell of a body-centred cubic (bcc) crystal is 352 pm. Calculate the radius of the atom.

Which of the following statement is correct for the body-centred cubic structure of an ionic compound?