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Why does electron gain enthalpy has a negative value?

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Question

Why does electron gain enthalpy has a negative value?

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Solution

Electron gain enthalpy has a negative value because when an electron is added to an isolated gaseous atom, energy is released. Therefore, the enthalpy change is negative.

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Chapter 1: Periodic Properties and Variations of Properties - Intext Question [Page 13]

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Lakhmir Singh Chemistry [English] Class 10 ICSE
Chapter 1 Periodic Properties and Variations of Properties
Intext Question | Q 8. | Page 13
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