In AB2 crystal , A2+ ion arrange in CCP manner and B- occupy all tetrahedral voids , if radius of A2+ ion is 100 pm then the radius of B- ion is
22.5 pm
41.4 pm
20.7 pm
73.2 pm
Tetrahedral Voids -
Voids form by touching 4 spheres , 3 in the same plane and one in lower or upper plane is known as tetrahedral void.
- wherein
r = radius of void
R = radius of atom
Option 1)
22.5 pm
This is correct
Option 2)
41.4 pm
This is incorrect
Option 3)
20.7 pm
This is incorrect
Option 4)
73.2 pm
This is incorrect
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