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The 207 pages that link to Oxidation state, each with the reason it gives.

• Post-transition metalRelated: Variable oxidation states distinguish members such as tin and lead from simpler cases.

• Potassium oxideRelated: Potassium's +1 and oxygen's −2 states determine K₂O's neutral formula.

• PyrolusiteRelated: Manganese is in the +4 oxidation state in MnO₂, enabling reduction in several reactions.

• Chromium(III) oxideRelated: Assigning oxygen −2 gives chromium +3 in neutral Cr₂O₃.

• Group 10 elementRelated: Group 10 elements share common oxidation states, but their accessible chemistry varies down the group.

• Iron(II) hydroxideRelated: Oxidation-state bookkeeping distinguishes this iron compound from iron(III) hydroxide.

• Lead(II) iodideRelated: The Roman numeral II specifies lead's +2 oxidation state in this compound.

• Main-group elementRelated: Common oxidation states often reflect the valence-electron counts of main-group atoms.

• Potassium iodateRelated: Iodine has oxidation state +5 in iodate, distinguishing it from iodide.

• Potassium peroxideRelated: Each oxygen has oxidation state −1 in the peroxide ion, unlike oxide oxygen.

• Potassium superoxideRelated: The average oxygen oxidation state in KO₂ is −½, reflecting the superoxide ion’s net charge.

• RedoxRelated: Changes in oxidation state identify which atoms lose or gain electrons.

• Spinel groupRelated: Charge balance constrains which cations can occupy sites in AB₂O₄ minerals.

• VanadateRelated: Vanadium’s oxidation state helps distinguish vanadate species and their reactivity.

• Xenon trioxideRelated: Xenon's +6 state helps classify XeO₃ as a high-valent xenon compound.

• Arsenous acidRelated: Arsenic has oxidation state +3 in arsenous acid, distinguishing it from arsenic acid.

• Boron groupRelated: Group 13 elements commonly form +3 compounds, while heavier members also favor +1.

• Bromic acidRelated: Bromine’s +5 state distinguishes bromic acid from other bromine oxoacids.

• Carbon groupRelated: The +4 and +2 states reveal the changing stability of group 14 compounds down the group.

• Cobalt(II) hydroxideRelated: The numeral II specifies cobalt’s formal +2 state in this compound.

• Copper(II) nitrateRelated: Copper’s +2 state distinguishes this salt from copper(I) nitrate.

• FerricyanideRelated: Iron has oxidation state +3 in ferricyanide, distinguishing it from ferrocyanide.

• Group 11 elementRelated: Copper, silver, and gold form compounds with distinct, element-dependent oxidation-state patterns.

• Inorganic compoundRelated: Oxidation states help balance formulas and describe electron transfer in inorganic compounds.

• Manganese(II) oxideRelated: Assigning oxygen −2 gives manganese +2 in electrically neutral MnO.

• Manganese(II) sulfateRelated: The numeral II specifies manganese’s formal oxidation state in this compound.

• MendeleviumRelated: Mendelevium experiments have established +2 and +3 oxidation states.

• Period 5 elementRelated: Variable oxidation states distinguish many period-5 transition metals in their compounds.

• Sodium permanganateRelated: The +7 oxidation state of manganese helps explain permanganate’s oxidizing capacity.

• Sodium peroxideRelated: Each oxygen in the peroxide ion has oxidation state −1, unlike oxide oxygen.

• ThalliumRelated: Thallium commonly forms +1 compounds and also exhibits the +3 state.

• Tin(II) chlorideRelated: The Roman numeral II identifies tin’s formal +2 state in this compound.

• UraniniteRelated: Uranium’s changing oxidation states help explain uraninite’s variable chemistry.

• Cobalt(II) chlorideRelated: The cobalt ion is assigned oxidation state +2 in CoCl₂.

• Cobalt(II) oxideRelated: The +2 state distinguishes CoO from cobalt oxides with different compositions.

• Copper(I) chlorideRelated: The +1 assignment distinguishes copper in CuCl from copper in CuCl₂.

• Dinitrogen trioxideRelated: Nitrogen has an average oxidation state of +3 in N₂O₃.

• Electron countingRelated: Oxidation states support ionic electron counts for transition-metal complexes.

• Group 8 elementRelated: Variable oxidation states are a prominent feature of group 8 chemistry.

• Iodic acidRelated: The +5 assignment distinguishes iodic acid from iodine’s other oxoacids.

• Manganese(II) chlorideRelated: The Roman numeral II specifies manganese’s formal charge as +2.

• Oxygen difluorideRelated: In OF₂, oxygen has oxidation state +2 because fluorine is more electronegative.

• Phosphorus trioxideRelated: It provides the bookkeeping that assigns phosphorus the +3 state in P₄O₆.

• Potassium chromateRelated: It identifies chromium in potassium chromate as chromium(VI).

• Selenium dioxideRelated: Selenium is in the +4 oxidation state in SeO₂ and can be reduced during oxidations.

• Silver nitrideRelated: Oxidation-state bookkeeping helps interpret proposed ionic descriptions of silver nitride.

• Sodium orthovanadateRelated: Vanadium speciation and reactivity depend on its oxidation state.

• Tin(IV) chlorideRelated: The compound’s name specifies tin’s oxidation state as +4.

• Xenon tetroxideRelated: Assigning oxygen −2 gives xenon the +8 state in XeO₄.

• Aluminium carbideRelated: Aluminium is +3 and carbon is −4 in the ionic accounting of Al₄C₃.