Question

Which element in the following pair whould have a more negative electron gain enthalpy and why ?

(a) = Oxygen or Fluorine
(b) = Fluorine or Chlorine ​

Answer 1

Answer:

A fluorine or chlorine because of their small atomic radius they have high nuclear force of attraction between the electrons that's why they have high enthalpy

Answer 2

Answer:

Explanation:

Oxygen has more negative gain enthalpy because fluorine has 7 electrons in outermost shell where's oxygen has 6 electrons in outermost shell