Here I have slightly modified the periodic table, which I obtained from the "Molecular Research Institute," to include all of the possible oxidation states for all of the elemental atoms. I've found many times that this modification is helpful because it's not always easy to remember all the possible oxidation states for all the different elements (especially with metals) since they often times don't fill up their entire outer orbital electron shells when bonding with other atoms due to some nonlinear quantum statistical thermodynamic effects. Anyhow, it is just more convenient to have all the oxidation states on the table rather than having to look it up somewhere else.
(click on picture to expand)
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ref: Periodic Table