Question

3.20
Which of the following pairs of elements would have a more negative electron gain
enthalpy? explain
(i) O or F (ii) F or C1​

Answer 1

Answer:

O or F. Electron gain enthrall of F is much more negative than that of O. This is because as we from O to F, the atomic size decreases and nuclear charge increases, thereby increase the attraction of the nucleus for the incoming electron and hence electron gain enthrall becomes more negative.

Explanation:

hope helps u