What is the difference between body centred cubic and face centred cubic?

If 'a' stands for the edge length of the cubic system : simple cubic , body centred cubic and face centred cubic, then the ration of the radii of the spheres in these systems will be respectively :

The ratio of number of atoms present in a simple cubic , body centred cubic and face centred cubic structure are, respectively

Sketch the (a) simple cubic (b) face-centred cubic and (c) body centred cubic lattices.

What is the co-ordination number of a body centred cube ?

The lattice points in a face centred cubic lattice and body centred cubic lattice are respectively

The empty space in the body centred cubic lattice is :

What is meant by the term coordination number in solids? What is the coordination number in a face centered cubic close packing structure?

A metal crystallizes into two cubic phases, face-centred cubic and body-centred cubic, which have unit cell lengths 3.5 and 3.0 A , respectively. Calculate the ratio of densities of fcc and bcc.

How many atoms are there per unit cell in (i) simple cubic arrangement of atoms, (ii) body centred cubicarrangement of atoms, and (iii) face-centred cubic arrangement of atoms?