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does there always have to ba an exact electron shell fit in ionic bonding?


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Hi everyone,


I'm just wondering about ionic bonding, for eg aluminium oxide. Oxygen has 4 electrons on the outer shell whereas aluminium has 3. So the oxygen atom could gain 2 from aluminium to fill their outer shell, but aluminium would still have one electron on it's outer shell. So what would happen to this? Would it remain with the aluminium?




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