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Why does chlorine have more negative electron gain enthalpy than fluorine?

Why does chlorine have more negative electron gain enthalpy than fluorine?

Complete answer: Electron gain enthalpy is the amount of energy released when an electron is added in the shell of an atom. The element in whose shell the electron gets easily added has more negative electron gain enthalpy. Thus, the electron gain enthalpy of chlorine is more negative than that of fluorine.

Why does chlorine have the most negative electron gain enthalpy?

Chlorine is a smaller atom when compared to sulphur and it requires very less amount of energy to add an extra electron. So, it has more negative electron gain enthalpy than sulphur.

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Why does chlorine have the highest negative electron gain enthalpy in Group 17?

Electron Gain Enthalpy Across their respective periods, halogens have the most negative electron gain enthalpy value because of their electronic configuration. Down the group, the electron gain enthalpy value becomes less negative.

What is the electron gain enthalpy of chlorine?

-349 kJ mol-1
The electron gain enthalpy of chlorine is -349 kJ mol-1 .

Which of the following will have the most negative electron gain enthalpy and which the least negative P S CI F explain your answer?

Hence the element with most negative electron gain enthalpy is chlorine ; the one with the least negative electron gain enthalpy is phosphorus.

Why is fluorine less negative than 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.

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Which is highest negative electron gain enthalpy?

Halogens have the highest negative value of electron gain enthalpy. Energy is released when an electron is added to the atom.

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$(-296\, kJ/mol)$.