Published by:
CGP EDU Academic Team
Published on: August 14, 2026
Given that interionic distance in Na + , F – crystal is 2.31Å and 
= 1.36Å, which of the following predictions will be right
A
≈ 0.7
B
coordination number of Na + = coordination nunber of F – = 6
C
Na + , F – will have rock salt type crystal structure
D
effective nuclear charge for Na + and F – are equal
Text Solution
Verified by ExpertsThe correct answer is:
CHECK THE SOLUTION.
(a,b,c) Na + & F – are isoelectronic hence they will have same screening const (s) but not the effective nuclear charge.
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