Engineering
Chemistry
Voids or Interstitial Site and Radius Ratio
Question
The interstitial hole is called tetrahedral because :
it is formed by four spheres
partly same and party different
it is formed by four spheres, the centres of which from a regular tetrahedron
none of the above
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Solution
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The tetrahedral hole can be visualized as three spheres in a plane and one on top of it with the space at the centre having the shape of a regular tetrahedron.

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