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CGP EDU Academic Team
Published on: August 13, 2026
Which of the following arrangements represents the correct order of electron gain enthalpy?
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A
Electron gain enthalpy becomes more negative across a period while it becomes less negative in a group. However, electron gain enthalpy of O or F is less than that of the succeeding element. When electron is added to n = 2, the repulsion is more than when it is added to n = 3 in case of Cl or S.
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