Question

Among flourine and chlorine which has maximum negative electron gain enthalpy

Answer 1

chlorine is ur answer dude........

Answer 2

Explanation:

Electron gain enthalpy of F is less negative than that of Cl because when an electron is added to F,the added electron goes to the smaller n=2 quantam level and suffers repulsion from other electons present in this level. In case of Cl,the added electron goes to the larger n=3 quantam level and suffers much less repulsion from other electron.

thanks