If edge length and radius of anion in anti fluorite structure are 320 pm and 120 pm respectively then radius of cation is
36.8 pm
18.6 pm
60 pm
116 pm
Antifluoride Structure -
arrange in CCP
found in tetrahedral void
Edge length =
Coordination number = 4 : 8
- wherein
Number of = 8
Number of = 4
Number of molecule per unit cell = 4
Ex : etc
Option 1)
36.8 pm
This is incorrect
Option 2)
18.6 pm
This is correct
Option 3)
60 pm
This is incorrect
Option 4)
116 pm
This is incorrect
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