Periodic Classification and Periodic Properties - Result Question 17
####14. The correct order of radii is
$(2000,1 M)$
(a) $N<Be<$ B
(b) $F^{-}<O^{2-}<N^{3-}$
(c) $Na<Li<K$
(d) $Fe^{3+}<Fe^{2+}<Fe^{4+}$
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Answer:
Correct Answer: 14. (b)
Solution:
- Among isoelectronic species, greater the negative charge, greater the ionic size, hence $F^{-}<O^{2-}<N^{3-}$.
