Question

What is Electron affinity?

Answer 1

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When an electron is added to an atom, a change in energy occurs. This change in energy is what we call the electron affinity
OR
The energy change that occurs when a neutral atom gains an electron is called its electron affinity . When energy is released in a chemical reaction or process, that energy is expressed as a negative number


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Answer 2

Jump to: navigation, search. In chemistry and atomic physics, the electron affinity (Eea) of an atom or molecule is defined as the amount of energy released or spent when an electron is added to a neutral atom or molecule in the gaseous state to form a negative ion. X + e− → X− + energy.
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