Difference between the octahedral and tetrahedral void acc to 3 marks

Difference between the octahedral and tetrahedral void acc to 3 marks

Tetrahedral voids: The vacant space among four spheres having tetrahedral arrangement is called tetrahedral hole. the co-coordination number of tetrahedral void is four.
Octahedral Void: The void formed by equilateral triangles with apices in opposite direction is called octahedral void. the coordination number of octahedral void is six
There is two terahedral sites for each sphere and there is only one octahedral site for each sphere.