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  • 11-10-2018
  • Chemistry
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Why does aluminum most often have an oxidation state of +3

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  • 11-10-2018

Aluminium most often has an oxidation state of +3 because it has three valence electrons that are removed relatively easily.

Al is in Group 13, so it has three valence electrons.

To get a complete octet, it must either lose three electrons or gain five.

It is easier to remove three electrons, so Al most often has an oxidation state in its compounds.


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