Quick question about Aluminium ? How to find its oxidation state ?

AI Thread Summary
To determine the oxidation state of aluminum in compounds like Al2(Cr2O7)3, it is essential to understand that aluminum typically has an oxidation state of +3, which is derived from its position in the periodic table as a group 13 element. The oxidation states of other elements in the compound, such as chromium and oxygen, can also be used to verify this. Familiarity with common oxidation states and the rules for naming compounds can aid in identifying these values. Utilizing a periodic table is crucial, but additional resources or textbooks may provide further insights into oxidation states. Understanding these concepts is key to mastering compound naming in chemistry.
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Homework Statement



I am struggling a bit with naming compounds.

Al2(Cr2O7)3

Now, I know its aluminum dichromate, and the way to find this was KNOWING the oxidation state of Al being +3 - How am I suppose to know that? How do you find that out when all you have is a basic periodic table?


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