Difference between tetrahedral and octahedral voids
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See the diagram.
These voids are the gaps among the closely packed atoms in a crystal.
In a lattice structure there are three spherical atoms in one plane. Then there is a gap among them. On top of the void there is a 4th atom sitting on top, that is touching the other three atoms. The void created by that arrangement is called tetrahedral void. It is created by 4 atoms.
In another lattice structure there are two very similar layers of atoms which are slightly displaced with respect to the other. Then on top of three touching atoms and above them, another set of three touching atoms are arranged. However the upper set of atoms sit between a pair of the lower level layer atoms. Thus the void is formed by 6 atoms. This is called Octahedral void.
These voids are the gaps among the closely packed atoms in a crystal.
In a lattice structure there are three spherical atoms in one plane. Then there is a gap among them. On top of the void there is a 4th atom sitting on top, that is touching the other three atoms. The void created by that arrangement is called tetrahedral void. It is created by 4 atoms.
In another lattice structure there are two very similar layers of atoms which are slightly displaced with respect to the other. Then on top of three touching atoms and above them, another set of three touching atoms are arranged. However the upper set of atoms sit between a pair of the lower level layer atoms. Thus the void is formed by 6 atoms. This is called Octahedral void.
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nice answer sir
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