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Question
The absolute value of the electron gain enthlpy of halogen satisfies:
The absolute value of the electron gain enthlpy of halogen satisfies:
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Solution
The correct option is C Cl > F > Br > l
Answer: (c)
Electron gain enthalpy is the amount of energy released when an electron is added to an isolated gaseous atom in its ground state. Higher the tendency to accept electrons, higher will be the electron gain enthalpy.
Down the group the electron gain enthalpy decrease due to the weak nuclear charge.
However, due to the extremely small size of F it experiences very high inter-electronic repulsion and hence has smaller electron gain enthalpy value than Cl.
Answer: (c)
Electron gain enthalpy is the amount of energy released when an electron is added to an isolated gaseous atom in its ground state. Higher the tendency to accept electrons, higher will be the electron gain enthalpy.
Down the group the electron gain enthalpy decrease due to the weak nuclear charge.
However, due to the extremely small size of F it experiences very high inter-electronic repulsion and hence has smaller electron gain enthalpy value than Cl.
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