Chemical elements make up pretty much everything in the physical world. As of 2016, we know of 118 elements, all of which can be found categorized in the famous periodic table that hangs in every ...

"Oxidation states play such an important role in the fundamentals of chemistry that some have argued that they should be represented as the third dimension of the periodic table." ...

An oxidation state relates to the the number of electrons that ... states are generally presumed to have already been identified over the last 100+ years for the elements of the periodic table.

Because of this importance, most accessible oxidation states are generally presumed to have already been identified over the last 100+ years for the elements of the periodic table.