Why electron gain enthalpy of fluorine is less than negative than that of chlorine?
In Fluorine, the new electron to be added goes to 2p-subshell while in chlorine, the added electron goes to 3p-subshell. As a result, the incoming electron does not feel much attraction from the nucleus and therefore, the electron gain enthalpy of F is less negative than that of Cl.
Why is the electron gain enthalpy of chlorine greater than that of fluorine?
It is due to small size of fluorine atom. As, there are strong inter electron repulsion in the relatively small 2P orbits of fluorine and thus, the incoming electron does not experience much attraction. Therefore chlorine has the electron gain enthalpy than the fluorine.
Why Although electron gain enthalpy of fluorine is less negative as compared to chlorine fluorine is stronger oxidising agent than chlorine Why?
Although electron gain enthalpy of fluorine is less negative as compared to chlorine, fluorine is a stronger oxidizing agent than chlorine, because of low enthalpy of dissociation of F-F bond (158.8/ kJ mol-1) and high hydration enthalpy of F- (515/ kJ mol-1).
Why F is more electronegative than chlorine but the electron gain enthalpy of CL is more negative than that of F?
According to periodic properties, as we move down in a group of the periodic table the electron gain enthalpy should become less negative and fluorine is placed above chlorine yet has more negative electron gain enthalpy. Thus, the electron gain enthalpy of chlorine is more negative than that of fluorine.
Which has more negative electron gain enthalpy O or F?
Electron gain enthalpy 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 enthalpy becomes more negative.
Why is F2 more reactive than Cl2 in spite of chlorine has higher electron gain enthalpy than fluorine?
F2 is more reactive than Cl2 due to greater repulsion in the non-bonded electron pairs in the molecule of F2 as compared to Cl2 therefore the bond cleavage in fluorine becomes easier.
Why chlorine has higher electron affinity than chlorine?
Chlorine has higher electron affinity than fluorine because the atomic radius of Chlorine is larger than fluorine because of more electrons . So, the tendency to lose it’s electrons also increase .
What is the electron gain enthalpy of fluorine?
Therefore, the correct order of the electron gain enthalpy is fluorine$(-333\, kJ/mol)$, chlorine$(-349\, kJ/mol)$, bromine$(-325\, kJ/mol)$ and iodine$(-296\, kJ/mol)$.
Why is fluorine the best oxidizing agent than iodine?
Fluorine is one of the most oxidizing agents because it has the highest reduction potential than bromine and iodine. It has a high reduction potential because the bond enthalpy of fluorine is low, and it is one of the electronegative elements.
Which has more electron gain enthalpy F or O?
Which has higher electron gain enthalpy O or F?
(i) O or F. Electron gain enthalpy 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 enthalpy becomes more negative.
Why is the electron gain enthalpy of O or F is less than that of S or Cl A small size B less repulsion c large size D high electronegativity?
O and F are more electronegative than S and Cl. Adding an electron to 3p-orbital leads to more rpulsion than 2p-orbital. Electron gain enthalpy depends upon the electron affinity of the atom. There is more repulsion for the incoming electron when the size of atom is smaller.
Why is electron gain enthalpy of chlorine more negative than fluorine?
Why is the electron gain enthalpy of chlorine more negative than fluorine? The negative electron gain enthalpy of fluorine is less than that of chlorine. It is due to small size of fluorine atom.
Why is the ETA of fluorine less than that of chlorine?
E.A of fluorine is less than that of chlorine due to two reasons: (1) Small size fluorine atom makes the 2p subshell more compact. This results in repulsion among electrons of the valence shell and also with electron to be added. Due to this F atom has less tendency to accept electron.
Why is fluorine more reactive than chlorine?
However, the bond dissociation energy of fluorine is much lesser than that of chlorine. In addition, its small size, the hydration energy of fluorine is much higher than that of chlorine. So, the latter two factors more than compensate for the less negative electron gain enthalpy of fluorine.
What are the properties of fluorine atom?
(1) Small size fluorine atom makes the 2p subshell more compact. This results in repulsion among electrons of the valence shell and also with electron to be added. Due to this F atom has less tendency to accept electron. (2) Because of small size of fluorine, there will be high electron density around the nucleus.