Which of the following orders of ionic radii is correctly represented

Which of the following orders of ionic radii is correctly represented

Options

(a) H⁻ > H⁺ > H
(b) Na⁺ > F⁻ > O²⁻
(c) F⁻ > O²⁻ > Na⁺
(d) Al³⁺ > Mg²⁺ > N³⁻

Correct Answer:

none

Explanation:

Cations lose electrons and are smaller in size than the parent atom whereas anions add electrons and are larger in size than the parent atom. Hence the order is H⁻ >H>H⁺.
For isoelectronic species the ionic radii decreases with increase in atomic number i.e nuclear charge.
Hence the correct orders are O²⁻>F⁻>Na⁺ and N³⁻>Mg²⁺>Al³⁺

admin:

Related Questions

  1. Which of the following statements is true for the electrochemical Daniel cell
  2. Which compound show geometrical isomerism
  3. Which of the following 0.1M solution will show maximum boiling point
  4. Which is weakest acid
  5. Schiff’s reagent is