MCQ
The correct order of radii is
  • A
    $N < Be < B$
  • ${F^ - } < {O^{2 - }} < {N^{3 - }}$
  • C
    $Na < Li < K$
  • D
    $F{e^{3 + }} < F{e^{2 + }} < F{e^{4 + }}$

Answer

Correct option: B.
${F^ - } < {O^{2 - }} < {N^{3 - }}$
b
(b)Ionic radii decreases significantly from left to right in a period among representative elements.

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