Question

what are Octahedral voids ?

Answer 1

this void is surrounded by six spheres and formed by the combination of two triangular void of the first and second layer .

I HOPE IT helps you

Answer 2

Answer:

(1) Octahedral void : The vacant space or void at the centre of six spheres (or atoms) which are placed octahedrally is called octahedral void.

(i) (ii) Octahedral void at Octahedral void at 12 Octahedral voids at the body centre the edge 12 edge (shared by 4 centre unit cells) represented centres by O

(2) Characteristics of octahedral void

(i) The volume of the void is small.

(ii) There is one octahedral void at the body centre and twelve octahedral void positions at twelve edge centres.

iii) If R is the radius of constituent atom, then the radius of the octahedral void is 0.414 R.

(iv) The coordination number of octahedral void is SLX.

(v) There is one octahedral void per sphere in the crystal lattice. If the number of closed packed spheres is N then the number of octahedral voids is N.