= Electron affinity (data page)
{wiki=Electron_affinity_(data_page)}
Electron affinity is a measure of the energy change that occurs when an electron is added to a neutral atom in the gas phase to form a negatively charged ion (anion). It provides insight into how easily an atom can gain an electron and is an important factor in understanding chemical reactivity and the formation of ions. \#\#\# Key Points about Electron Affinity: 1. **Definition**: - Electron affinity is defined as the amount of energy released or absorbed when an electron is attached to a neutral atom.
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