Electron Affinity reflects the ability of an atom to accept an electron.<\/p>\n\n\n\n
It is the energy change which occurs when an electron is added to a gaseous atom. Atoms with strong effective nuclear charge have greater electron affinity.<\/p>\n\n\n\n
The reaction occurs when an atom recieves an electron can be shown in representation as :<\/p>\n\n\n\n
X + e\u2212<\/sup> \u2192 X\u2212<\/sup> + energy<\/p>\n\n\n\n Similarly, another way to define is as the amount of energy that is needs to be present to remove an electron from a singly charged negative ion:<\/p>\n\n\n\n X\u2212<\/sup> \u2192 X + e\u2212<\/sup><\/p>\n\n\n\n Electron affinity is the amount of energy to detach one electron, from a negatively charged ion of an atom or molecule. It is indicates the usage of the symbol Ea and is usually express in units of kJ\/mol.<\/p>\n\n\n\n