The second electron affinity of an element is | vedclass

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(D) The first electron affinity is the energy released when an electron is added to a neutral gaseous atom,which is often exothermic. However,the seco

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Always endothermic

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(D) The first electron affinity is the energy released when an electron is added to a neutral gaseous atom,which is often exothermic. However,the second electron affinity involves adding an electron to a negatively charged ion (anion). Due to the strong electrostatic repulsion between the incoming electron and the existing negative charge on the anion,energy must be supplied to overcome this repulsion. Therefore,the second electron affinity is always endothermic.

The second electron affinity of an element is ...

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