When the ratio of the radius of cation and anion in the crystal lattice is 0.53, the co-ordination number in the lattice is

When the ratio of the radius of cation and anion in the crystal lattic

1.	When the ratio of the radius of cation and anion in the crystal lattice is 0.53, the co-ordination number in the lattice is
Answer» FOUR six eight TWELVE ANSWER :B