What Is Electron Affinity
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Electron affinity is the energy gained by an atom when an electron is added to it. The periodic trend of electron affinity is calculated when you progress from left to right across a period , which causes the electron affinity to increase, and also to increase from top to bottom.The periodic trend in electron affinity is caused by a decrease in atomic radius, which is an increase from left to right. When the atomic radius increases, it decreases from top to bottom.The term electronegativity is described as the measure of ability of an atom or molecule to attract pairs of electrons in a chemical compound. When referring to the periodic trend, the more you move from left to right across the periodic table, electronegativity increases, and when