- Ionic bonds are usually formed between a metal and a non-metal. As the name suggests, these bonds are formed between ions, e.g. Negative sodium and positive chloride ions.
- Usually one of the atoms, usually the metal, loses electron(s) to the other atom, creating ions. The ions are then attracted to each other and form an ionic compound.
- If an atom needs to gain or lose more electrons than the other has to lose or gain, two or more atoms of each element may react.
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