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Metallic aluminium has the oxidation number zero. In compounds in the form of ions, it takes the oxidation number +III.
Metallic aluminium has the oxidation number zero. In compounds in the form of ions, it takes the oxidation number +III.

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12y ago
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10y ago

Aluminium generally acts as a reactant in the form of aluminium metal, with an oxidation number of 0, or as the Al3+ ion where it has an oxidation number of +3.

Rarely aluminium may be a reactant with an oxidation number of +1, and compounds such as AlCl have been detected in the gas phase.

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11y ago

0 in the elemental form

+3 in its compounds

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13y ago

Al = +3

N = -3

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11y ago

+3 for Al, -2 for S

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6y ago

This oxidation state is zero.

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Q: What is the oxidation number of aluminum as a reactant?
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