According to the general rule for oxidation states in a group on the right side of the periodic table, the group number, which is 5, has the greatest oxidation number and the lowest oxidation number is #8, which is 5-8=-3.
This fundamental idea is thus shown by Group 5A, whose oxidation states range from 3 to +5. The oxidation state or oxidation number of an atom is the charge it would have if all of its connections to other atoms were entirely ionic.
A chemical complex describes how much an atom has oxidized (lost electrons). It is possible for the oxidation state to be positive, negative, or zero. Even while nature does not fully consist of ionic bonds, many of them exhibit high iconicity, making the oxidation state a reliable predictor of charge.
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