The correct relation for radius of atom and edge - length in case of fcc arrangement is

The correct relation for radius of atom and edge length in case of FCC arragement is

In the face-centred cubic unit cell of cloest packed atom,s the radius of atoms of edge length (a) of the unit cell is

2xx10^(8) atoms of carbon are arranged side by side. Calculate the radius of carbon atom if the length of this arrangement is 2.4 cm .

In the primitie cubic unit cell of closed packed atoms, the radius of atom in terms of edge length (a) of unit cell is

The relation between atomic radius and edge length 'a' of a body centred cubic unit cell :