Which of the following has the highest electron affinity?

Which of the following has the highest electron affinity?

Options

(a) F⁻
(b) O⁻
(c) O
(d) Na

Correct Answer:

O

Explanation:

As the size of atom decreases, a larger amount of energy is released when an elctrn is added to an isolated gaseous atom. Among the given species, the size of O atom is smallest (Since, size of parent atom is smaller as compared to its anion), thus its elctrn affinity is highest.

admin:

Related Questions

  1. Azeotropic mixture of HCl and H₂O has
  2. Electrolysis of aqueous solution of potassium fumarate or potassium maleate can
  3. If the adsorbate is held on a surface by weak Van der Walls forces
  4. When x g of magnesium burnt with oxygen what is left
  5. If HNO₃ changes into N₂O, the oxidation number is changed by