As we know, atoms can bond together via ionic bonds, which happen when two atoms share the Valence electrons, which are the electrons on the outermost shell.
Ions are created when an atom loses or gains an electron, this helps the atom to become stable, by having a full outer shell.
If we take Chlorine, which has 17 electrons in its shells and needs only one electron to form a Chlorine ion, the Chlorine atom will take that electron from another atom for example a Sodium atom or Na , which we write like this Cl+e- = Cl-.
But these don't happen by themselves, as the elections need a type of
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