イオンの一覧
第16族元素、ハロゲン

| 元素 | イオン | 色 | 化合物の例 | 化学的性質 |
| --- | --- | --- | --- | --- |
| O | O2− |  | CaO | O2− + H2O → 2 OH− |
| O | OH− | 無色 | NaOH |  |
| O | H3O− 2 |  | Na2[Et3MeN][Cr(PhC(S)=N(O))3]· 1⁄2NaH3O2·18H2O |  |
| O | O22- |  | Na2O2 |  |
| O | HO2− |  |  |  |
| O | O2− |  | KO2 |  |
| O | O2+ |  | O2BF4 |  |
| O | O3− |  | KO3 |  |
| S | S2- | 無色 | Na2S | S2− + H2O = HS− + OH−（完全に加水分解される。） S2− + 2 H+ → H2S↑ |
| S | HS− |  |  |  |
| S | S22- | 黄色 | Na2S2 | S22- + 2 H+ → H2S↑ + S↓ |
| S | S32- |  |  |  |
| S | S42- |  |  |  |
| S | S52- |  |  |  |
| S | S62- |  |  |  |
| S | S72- |  |  |  |
| S | S82- |  |  |  |
| S | S92- |  |  |  |
| S | S4+ |  |  |  |
| S | S42+ | 黄色 |  |  |
| S | S82+ | 青色 |  |  |
| S | S162+ | 赤色 |  |  |
| S | SO22- |  | ZnSO2 |  |
| S | SO32- | 無色 | Na2SO3 | SO32- + 2 H+ → H2O + SO2↑ |
| S | HSO3− | 無色 | NaHSO3 |  |
| S | S2O32- | 無色 | Na2S2O3 | S2O32- + 2 H+ → H2O + S↓ + SO2↑  2 S2O32- + I2 → S4O62- + 2 I− |
| S | S2O42- |  | Na2S2O4 |  |
| S | S2O62- |  | Na2S2O6·2H2O |  |
| S | S3O62- |  |  |  |
| S | S4O62- |  |  |  |
| S | S5O62- |  |  |  |
| S | SO3F− |  | KSO3F |  |
| S | SO42- | 無色 | Na2SO4 |  |
| S | HSO4− |  |  | 水中で解離する。 |
| S | H3SO4+ |  |  | 水中で解離する。 |
| S | S2O72- | 無色 | K2S2O7 |  |
| S | HS2O7− |  |  |  |
| S | S2O82- | 無色 | K2S2O8 |  |
| S | [S2I4]2+ |  |  |  |
| S | [S4N3]+ | 黄色 | [S4N3]Cl |  |
| S | [S3N2]+ |  | [S3N2][AsF6] |  |
| S | [S4N4]2+ |  | [S4N4][AlCl4]2 |  |
| S | [S5N5]+ |  | [S5N5][AlCl4] |  |
| S | [S6N4]2+ |  |  |  |
| S | [S4N5]− | 橙色 | Na[S4N5] |  |
| S | [S3N3]− |  | K[S3N3] |  |
| S | [S3N2Cl]+ |  | [S3N2Cl]Cl |  |
| Se | Se2- |  | Na2Se·10H2O |  |
| Se | HSe− |  | NaHSe |  |
| Se | Se22- |  |  |  |
| Se | Se32- |  |  |  |
| Se | Se42- |  |  |  |
| Se | Se52- |  |  |  |
| Se | Se34- |  |  |  |
| Se | Se44- |  |  |  |
| Se | Se54- |  |  |  |
| Se | SeO(OH)+ |  |  |  |
| Se | Se(OH)3+ |  | Se(OH)3ClO4 |  |
| Se | SeO32- | 無色 | Na2SeO3 | SeO32- + 2 NH2OH + 2 H+ → N2O↑ + Se↓ + 4 H2O |
| Se | HSeO3− |  |  |  |
| Se | [H3(SeO3)2]− |  | NaH3(SeO3)2 |  |
| Se | Se2O52- |  |  |  |
| Se | SeO42- | 無色 | Na2SeO4 |  |
| Se | HSeO4− |  |  |  |
| Se | Se4O132- |  |  |  |
| Se | Se3O102- |  |  |  |
| Se | Se2O72- |  |  |  |
| Se | OSeF5− |  | NaOSeF5 |  |
| Se | Se42+ | 黄色 | Se4(AlCl4)2 |  |
| Se | Se82+ | 明るい緑色 | Se8(AlCl4)2 |  |
| Se | Se102+ |  |  |  |
| Se | Se162+ | 暗い褐色 | Se16(AlCl4)2 |  |
| Se | [Se2I4]2+ |  |  |  |
| Se | [Se4I4]2+ |  |  |  |
| Se | [Se6I2]2+ |  |  |  |
| Se | SeF3+ |  | [SeF3][SbF6] |  |
| Se | [Se2Cl]+ |  | [Se2Cl][SbCl6] |  |
| Se | SeI3+ |  |  |  |
| Te | Te2- |  |  |  |
| Te | Te22- |  |  |  |
| Te | Te72- |  |  |  |
| Te | Te74- |  |  |  |
| Te | Te84- |  |  |  |
| Te | Te124- |  |  |  |
| Te | TeO(OH)+ |  |  |  |
| Te | TeO32- | 無色 | Na2TeO3 | TeO32- + 2 Sn2+ + 6 H+ → Te + 2 Sn4+ + 3 H2O TeO32- + 2 H+ —室温→ TeO2↓ + H2O |
| Te | Te2O52- |  | Na2Te2O5 |  |
| Te | HTe2O5− |  | NaHTe2O5 |  |
| Te | Te3O72- |  | K2CO3 |  |
| Te | Te4O92- |  | K2CO3 |  |
| Te | Te6O132- |  | K2CO3 |  |
| Te | TeS32- | 黄金色 | K2TeS3 |  |
| Te | TeS42- |  | Na2TeS4 | TeS42- + 3 SO32- → Te↓ + S2− + 3 S2O32- TeS42- + 3 AsO33- → Te↓ + S2− + 3 AsO3S3− |
| Te | [Te(S5)2]2- |  |  |  |
| Te | TeO42- |  |  |  |
| Te | H5TeO6− |  |  |  |
| Te | H4TeO62- |  |  |  |
| Te | TeO66- |  | Ag6TeO6 |  |
| Te | HTe2O72- |  |  |  |
| Te | Te4O132- |  | K2Te4O13 |  |
| Te | [H3(TeO4)2]− |  |  |  |
| Te | H4TeO72- |  | K2H4TeO7 |  |
| Te | Te22+ | 黄色 |  |  |
| Te | Te42+ | 赤色 | Te4(AlCl4)2 |  |
| Te | Te62+ |  | Te6(AlCl4)2 |  |
| Te | TeCl3− |  | KTeCl3 |  |
| Te | TeI62- |  |  |  |
| Te | [TeF7]− |  | Cs[TeF7] |  |
| Te | [TeF8]2- |  | Rb2[TeF8] |  |
| Po | Po2- |  |  |  |
| Po | PoCl3− |  |  |  |
| Po | PoCl42- |  |  |  |
| Po | PoBr3− |  |  |  |
| Po | PoBr42- |  |  |  |
| Po | PoO32- |  | K2PoO3 |  |
| Po | Po4+ |  |  | Po4+ + 2 H2S → PoS↓ + S↓ + 4 H+ |
| F | F− | 無色 | KF | H+ + F− ↔ HF |
| F | HF2− | 無色 | KHF2 |  |
| F | H2F+ | 無色 |  |  |
| F | OF− |  | HOF |  |
| Cl | Cl− | 無色 | NaCl |  |
| Cl | Cl3− |  |  |  |
| Cl | ClF2− |  |  |  |
| Cl | ClF4− |  |  |  |
| Cl | ClF2+ |  | [ClF2][BF4] |  |
| Cl | ClF+ |  |  |  |
| Cl | Cl2F+ |  |  | 不安定，2 Cl2F+ → ClF2+ + Cl3+ |
| Cl | Cl2+ |  | Cl2IrF6 |  |
| Cl | Cl3+ |  | [Cl3][AsF6] |  |
| Cl | ClF4+ |  | [ClF4][SbF6] |  |
| Cl | [ClF6]+ |  | [ClF6][PtF6] |  |
| Cl | ClO− |  | NaOCl | ClO− + Cl− + 2 H+ → H2O + Cl2↑ |
| Cl | ClO2− |  | NaClO2 | 中性またはアルカリ性の条件下でのみ存在 |
| Cl | ClO3− | 無色 | KClO3 |  |
| Cl | ClO4− | 無色 | KClO4 |  |
| Cl | ClO2+ |  | ClO2BrF4 |  |
| Cl | ClO2F2+ |  | [ClO2F2][PtF6] |  |
| Cl | ClO2F2− |  | Cs[ClO2F2] |  |
| Cl | [Cl(py)2]+ |  | [Cl(py)2]NO3 |  |
| Br | Br− | 無色 | KBr | 2 Br− + Cl2 → Br2 + 2 Cl− |
| Br | Br3− |  |  |  |
| Br | BrF2+ |  | BrF2SbF6 |  |
| Br | Br2+ | チェリーレッド | [Br2][Sb3F16] |  |
| Br | Br3+ | 茶褐色 | [Br3][AsF6] |  |
| Br | Br2Cl+ |  | [Br2Cl][Sb3F16] |  |
| Br | BrF2+ |  |  |  |
| Br | BrCl2− |  | [BrCl2][Sb3F16] |  |
| Br | Br2Cl- |  |  |  |
| Br | BrF4− |  | KBrF4 |  |
| Br | BrF4+ | 赤色 | [BrF4][Sb2F11] |  |
| Br | [BrF6]+ |  | [BrF6][AsF6] | BrF6+ + Xe → XeF+ + BrF5 |
| Br | BrF6− |  |  |  |
| Br | Br6Cl− |  |  |  |
| Br | BrO− |  | NaOBr |  |
| Br | BrS− |  | NH4SBr | 非常に不安定 |
| Br | BrO2− |  |  | 中性またはアルカリ性の条件下でのみ存在 |
| Br | BrO3− | 無色 | KBrO3 |  |
| Br | BrO4− |  | KBrO4 |  |
| Br | [Br(py)2]+ |  | [Br(py)2]SbF6 |  |
| I | I− | 無色 | KI | 2 I− + Cl2 → I2 + 2 Cl− 2 I− + Br2 → I2 + 2 Br− |
| I | I3− |  | CsI3 |  |
| I | I2+ | 青色 | [I2][Sb2F11] | 不均化しやすい。 |
| I | I42+ |  |  |  |
| I | I3+ | 赤茶色 |  |  |
| I | I5− |  | [NMe4]I5 |  |
| I | I5+ |  | I5AlCl4 |  |
| I | I7− |  | [NEt4]I7 |  |
| I | I7+ |  |  |  |
| I | I9− |  | [NMe4]I9 |  |
| I | I82- |  | Cs2I8 |  |
| I | IF2− |  |  |  |
| I | IF2+ |  | IF2BF4 |  |
| I | I2Cl− |  |  |  |
| I | I2Cl+ |  | [ICl2][SbCl6] |  |
| I | ICl2+ |  | [ICl2][AlCl4] |  |
| I | ICl3F− |  |  |  |
| I | I2Br− |  |  |  |
| I | I2Br+ |  |  |  |
| I | IBr2− |  |  |  |
| I | IBr2+ |  |  |  |
| I | I2Br3− |  |  |  |
| I | I3+ |  |  |  |
| I | IF4− |  |  |  |
| I | IF4+ |  | [IF4][SO3F] |  |
| I | IF6− |  |  |  |
| I | IF6+ |  | [IF6][AsF6] |  |
| I | IBrF− |  |  |  |
| I | IBrCl− |  |  |  |
| I | I2Cl3− |  |  |  |
| I | I2BrCl2− |  |  |  |
| I | IBrCl3− |  |  |  |
| I | I4Cl− |  |  |  |
| I | I4Br− |  |  |  |
| I | I6Br− |  |  |  |
| I | IO+ |  | [IO][HS2O7] |  |
| I | IO− |  | NaOI | 非常に不安定 |
| I | IS− |  | HSI | 非常に不安定 |
| I | IO2− |  |  | 非常に不安定 |
| I | IO3− | 無色 | KIO3 |  |
| I | [H(IO3)2]− |  | K[H(IO3)2] |  |
| I | [H2(IO3)2]− |  |  |  |
| I | [H2I6O17]2- |  |  |  |
| I | I3O8− |  | HI3O8 |  |
| I | H4IO6− |  |  |  |
| I | H3IO62- |  |  |  |
| I | H2IO63- |  |  |  |
| I | IO4− |  |  |  |
| I | IO65- |  |  |  |
| I | I2O118- |  |  |  |
| I | I2O94- |  |  |  |
| I | I2O106- |  |  |  |
| I | HI2O105- |  |  |  |
| I | H2I2O104- |  |  |  |
| I | H3I2O103- |  |  |  |
| I | H2I3O145- |  |  |  |
| I | H4I3O143- |  |  |  |
| I | IO2+ |  | IO2AsF6 |  |
| I | ICl2− |  |  |  |
| I | ICl4− |  | KICl4 |  |
| I | IO2F2− |  | KIO2F2 |  |
| I | [I(py)2]+ |  | [I(py)2]NO3 |  |
| I | [I(CH3CN)2]+ |  |  |  |
| I | [I(SCN)2]− |  | K[I(SCN)2] |  |
| At | At− |  |  |  |
| At | AtCl2− |  |  |  |
| At | AtBr2− |  |  |  |
| At | AtI2− |  |  |  |
| At | AtICl− |  |  |  |
| At | AtIBr− |  |  |  |
| At | At+ |  |  |  |
| At | AtO+ |  |  |  |
| At | AtO3− |  |  |  |
| At | AtO4− |  |  |  |
| At | AtO65- |  | H5AtO6 |  |
| At | [At(py)2]+ |  | [At(py)2]ClO4 |  |