Input interpretation
![polyatomic ions](../image_source/d61cb212f9b7022de469ec58c16eac47.png)
polyatomic ions
Members
![ammonium cation | hydronium cation | dimercury(I) cation | cyanide anion | hydrogen carbonate anion | hydrogen sulfate anion | hydroxide anion | nitrate anion | nitrite anion | perchlorate anion | permanganate anion | carbonate anion | chromate anion | dichromate anion | sulfate anion | sulfite anion | thiosulfate anion | hydrogen phosphate anion | phosphate anion | phosphite anion (total: 20)](../image_source/e6d1bba24120b695a21361e9f2ab84ad.png)
ammonium cation | hydronium cation | dimercury(I) cation | cyanide anion | hydrogen carbonate anion | hydrogen sulfate anion | hydroxide anion | nitrate anion | nitrite anion | perchlorate anion | permanganate anion | carbonate anion | chromate anion | dichromate anion | sulfate anion | sulfite anion | thiosulfate anion | hydrogen phosphate anion | phosphate anion | phosphite anion (total: 20)
Ionic radii
![thermochemical radius | median | 191.5 pm | lowest | 133 pm (hydroxide anion) | highest | 258 pm (sulfate anion)](../image_source/bfe70dcba27a83324aa9aa2011990825.png)
thermochemical radius | median | 191.5 pm | lowest | 133 pm (hydroxide anion) | highest | 258 pm (sulfate anion)
Units