Table of Contents
Why is electron gain enthalpy of F less than that of CL?
Fluorine atom is small in size and suffers with interelectronic repulsions between seven valence electrons. The added electron experiences much repulsion on smaller F. Hence its electron gain enthalpy is less.
Why does fluorine have lower electron affinity than chlorine?
Electron affinity of fluorine is less than that of chlorine. Due to the smaller size and thus, the greater electron-electron repulsions, fluorine will not accept an incoming electron with the same as chlorine.
Why is the electron gain enthalpy of O or F is less negative than that of the succeeding element in the group?
So, the electron gain enthalpy of O or F is less than that of succeeding element in their respective groups due to their smaller atomic size and more electron – electron repulsions.
What is the basic difference between the terms electron gain enthalpy and electronegativity?
What is the basic difference between the terms electron gain enthalpy and electronegativity?
| Electron gain enthalpy | Electronegativity |
|---|---|
| It is the property of an isolated atom | It is the property of bonded atom |
| It is the absolute electron attracting tendency of the atom | It is the relative electron attracting tendency of an atom |
Why does chlorine have more electron affinity than chlorine?
Chlorine and Electron Affinity Since chlorine’s outermost orbital is a 3p orbital, there is more space, and the electrons in this orbital are inclined to share this space with an extra electron.
Why electron gain enthalpy of O or f is less than S/Cl?
The size of S or Cl atom is not so small but not very large too. So, the attraction between nucleus and incoming electron is higher in case of S or Cl than in case of O or F. Hence, electron gain enthalpy of O or F is less than that of S or Cl.
Why does chlorine have the highest electron gain enthalpy than fluorine?
Halogens have highest negative value of electron gain enthalpy .here Cl &F both are halogens but electron gain enthalpy of Cl is greater than F because of very small size of F which causes inter electronic repulsion among its electrons. Hope this helpful! Originally Answered: Why chlorine has the highest elecron gain enthalpy than fluorine?
What is electelectron gain enthalpy?
Electron gain enthalpy is the energy change when an electron is added to an isolated gaseous atom. With this definition, consider fluorine. It is the smallest element (with respect to atomic radius) in its period. It also has 7 electrons in its outermost shell, the L (2nd) shell.
Why is the Ege of Cl more negative than F?
But when we compare the EGE of F and Cl, the value of Cl is more negative than that of F. (Cl: – 349 kJ/mol F: – 328 kJ/mol). This is because when an electron is added to F, the added electron goes to the smaller n = 2 quantum level and suffers significant repulsion from the electrons present in this level.