In an fcc unit cell, atoms are numbered as shown below

The atoms not rouching each other are (Atom numbered `3` is face center of front face)

In an fcc unit cell, atoms are numbered as shown below The atoms not touching each other are (Atom numbered 3 is face center of front face)

In fcc unit cell, atoms are numbered as shown below. The atoms not touching each other are (Atom numbered 3 is face centre of front face)

In an f.c.c unit cell , atoms are numbered as shown below . The atoms not touching each other are (Atom numbered 3 is face centre of front face )

In fcc unit cell, atoms are numbered as shown below. The atoms not touching each other are (Atom numbered 3 is face centre of front face)

In fcc unit cell, atoms are numbered as shown below. The atoms not touching each other are (Atom numbered 3 is face centre of front face)

In an FCC unit cell atoms are numbered as shown below the atoms not touching each other are (3 is back face centred)

In fcc arrangement of A and B atoms, where A atoms are at corners of the unit cell, B atoms at the face - centers, one of the atoms are missing from the corner in each unit cell then find the percentage of void space in the unit cell.