Engineering
Chemistry
Crystals and Unit Cells Types
HCP and CCP Parameters
Voids or Interstitial Site and Radius Ratio
Question
The distance between an octahedral and tetrahedral void in fcc lattice would be

3a

3a2

3a3

3a4

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Solution
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Distance between an octahedral and tetrahedral void in fcc lattice is =  body diagonal 4=3a4