For a solid with the following structure, the coordination number of the point B is ____________ .

For a solid with the following structure, the co-ordination number of the point B is

For a solid with the following structure, the co-ordination number of the point B is:

For a solid with the following structure, the co-ordination number of the point A and B resepectively are

In the fluorite structure, the coordination number of cation is:

In the fluorite structure, the coordination number of cation is:

In the fluorite structure the coordination number of Ca^(2+) ion is

In which of the following structures, the coordination number of both the ions are same ?