This value is 3+.
+3
The highest oxidation state which can be achieved by any element is +8. After all experiments, this state is only found in Osmium, Ruthenium and Xenon. But the synthetic element Hassium is also expected to have this oxidation state.
Aluminium has an oxidation state (number) of +3 in Al2O3. Al3O3 does not exist.
Chromium (Cr) has the hardest oxidation state among the listed metals. It commonly exhibits an oxidation state of +6 in compounds due to its high electronegativity and tendency to lose electrons.
•Total Charge = S charges •H2MnO43- • • •Al(OH)2+ • • • •H2
The oxidation number of Al in NaAlH4 is +3. This is because Na has an oxidation number of +1, H has an oxidation number of -1, and the overall compound has a neutral charge. Therefore, the oxidation number of Al can be calculated as +3.
The oxidation number of Br in Al2Br6 is -1. This is because the overall charge of the compound must be zero, and since we have two Br atoms each at -1 oxidation state, it balances out with the +3 oxidation state of Al.
Aluminum most often has an oxidation state of +3 because it readily loses its 3 valence electrons to achieve a stable electron configuration. This results in the formation of the Al3+ cation, which has a full outer shell of electrons.
In AlOH^1-, oxygen typically has an oxidation number of -2. Since the overall charge of AlOH^1- is -1, the oxidation number of Al can be calculated as follows: (oxidation number of Al) + (oxidation number of O) + (oxidation number of H) = -1. Solving for Al gives an oxidation number of +3.
The oxidation number of the central atom Al in AlF6^3- is +3. This is because each F atom contributes a -1 charge, and the overall charge of the complex ion is -3, so the Al atom must have a +3 oxidation state to balance it out.
+5. In oxyacids, oxygen has an oxidation state of -2 and hydrogen an oxidation state of +1. Therefore, the single chlorine atom must have an oxidation state of +5 for the total oxidation states to add to zero.+5. In oxyacids, oxygen has an oxidation state of -2 and hydrogen an oxidation state of +1
+3 for each Al; +4 for each C; -2 for each O