Question

Which has the most negative and least negative electron gain enthalpy in between P,S,Cl,I

Note: I just need the correct answers

Answer 1

Answer:

Here is your answer.

Explanation:

Most negative- Cl

Least Negative-Iodine

Answer 2

Answer:

We know,Halogens have highest negative value of electron gain enthalpy. Here Cl and F both are halogens but electron gain enthalpy of Cl is more negative than F because of very small size of F which causes interelectronic repulsion among its electrons. Cl has the most negative one.