Question

two differences between tetrahedral void and octahedral void?

Answer 1

(1) Octahedral void is surrounded by six spheres (atoms) and formed by a combination of two triangular voids of the first and second layer। whereas Tetrahedral voids are surrounded by four spheres which lie at the vertices of aregular tetrahedron.
(2) There is one Octahedral void per atom while two Tetrahedral voids per atom.
(3) For Octahedral। voids , the radius ratio is0.414 while for Tetrahedral voids is 0.225.