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Grade 12Physical Chemistry

Sir explain me : what are r tetrahedral and octahedral voids ??? How and where that form??

Profile image of Nidhi Prajapati
11 Years agoGrade 12
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1 Answer

Profile image of Ashish
11 Years ago
These voids are formed when the particles of a solid are packed in three-dimensional space.They are actually empty spaces formed between the particles when second layer of particles are placed over the triangular voids of first layer.A tetrahedral void is surrounded by 3 particles of 1st layer and 1 particle of 2nd layer.Since it is surrounded by 4 particles,its coordination no. is 4.An octahedral void is 8 faced void surrounded by 3 particles of 1st layer and 3 particles of second layer.Since it is surrounded by 6 particles, its coordination no. is 6,