An ionic bond will form between a cation and an anion.
Ionic bond which can also be called an electrovalent bond is a type of chemical bonding where by electrons are being transferred from one ion to another.
Ionic bond usually occurs between a metal atom (example Sodium) and a non-metal atom (example chlorine).
The metal atom is the cation because is has an extra electron on its outer most shell called the valence electron which it gives out to become a positively charged ion.
The non metal is the anion because it has an incomplete outermost shell, it accepts electrons to become negatively charged ion.
Therefore ionic bond occurs when a cation for donates electron to an anion leading to the formation of an ionic compound.
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