Answers

2014-08-18T20:21:02+05:30
There is a pdf file. it is tetrahedral voids.
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  • Brainly User
2014-08-18T20:50:03+05:30
These are surrounded by 4 sphere which lies on the vertices of a regular tetrahedron.There are 2 tetrahedron voids per atom in a crystal.
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