Polyatomic Ion List
Below is a list of the Polyatomic Ions. You can also skip to the screen reader friendly table version below.
Polyatomic Ions in alphabetical order, or you can go to the screen reader searchable Polyatomic Ion List Table
- \(\text{acetate} = {\eC_2\eH_3\eO_2}^{-}\)
- \(\text{ammonium} = {\eN\eH_4}^{+}\)
- \(\text{ammonium} = {\eN\eH_4}^{+}\)
- \(\text{bromate} = {\eBr\eO_3}^{-}\)
- \(\text{bromite} = {\eBr\eO_2}^{-}\)
- \(\text{carbonate} = {\eC\eO_3}^{2-}\)
- \(\text{chlorate} = {\eCl\eO_3}^{-}\)
- \(\text{chlorite} = {\eCl\eO_2}^{-}\)
- \(\text{chromate} = {\eCr\eO_4}^{2-}\)
- \(\text{cyanate} = {\eC\eN\eO}^{-}\)
- \(\text{cyanide} = {\eC\eN}^{-}\)
- \(\text{dichromate} = {\eCr_2\eO_7}^{2-}\)
- \(\text{dihydrogen phosphate} = {\eH_2\eP\eO_4}^{3-}\)
- \(\text{dihydrogen phosphite} = {\eH_2\eP\eO_3}^{-}\)
- \(\text{hydrogen carbonate} = {\eH\eC\eO_3}^{-}\)
- \(\text{hydrogen phosphate} = {\eH\eP\eO_4}^{2-}\)
- \(\text{hydrogen phospite} = {\eH_2\eP\eO_4}^{-}\)
- \(\text{hydrogen sulfate} = {\eH\eS\eO_4}^{-}\)
- \(\text{hydrogen sulfite} = {\eH\eS\eO_3}^{-}\)
- \(\text{hydronium} = {\eH_3\eO}^{+}\)
- \(\text{hydroxide} = {\eO\eH}^{-}\)
- \(\text{hypochlorite} = {\eCl\eO}^{-}\)
- \(\text{mercuruous} = {\eHg_2}^{2+}\)
- \(\text{nitrate} = {\eN\eO_3}^{-}\)
- \(\text{nitrite} = {\eN\eO_2}^{-}\)
- \(\text{oxylate} = {\eC_2\eO_4}^{2-}\)
- \(\text{perchlorate} = {\eCl\eO_4}^{-}\)
- \(\text{permanganate} = {\eMn\eO_4}^{-}\)
- \(\text{peroxide} = {\eO_2}^{2-}\)
- \(\text{phosphate} = {\eP\eO_4}^{3-}\)
- \(\text{phosphite} = {\eP\eO_3}^{3-}\)
- \(\text{sulfate} = {\eS\eO_4}^{2-}\)
- \(\text{sulfite} = {\eS\eO_3}^{2-}\)
- \(\text{thiocyanate} = {\eS\eC\eN}^{-}\)
Polyatomic Ion List Table
Below is a screen reader searchable table version. You can use your screen reader's search functionality to search either by the ion name (ex "chlorite") or the compound (no spaces, all sub and superscripted numbers are inline, the ion number is often the number then plus or minus, unless it's only 1 then it's just a plus or a minus at the end).
Formula
Name
\({\eC_2\eH_3\eO_2}^{-}\)
acetate
\({\eN\eH_4}^{+}\)
ammonium
\({\eN\eH_4}^{+}\)
ammonium
\({\eBr\eO_3}^{-}\)
bromate
\({\eBr\eO_2}^{-}\)
bromite
\({\eC\eO_3}^{2-}\)
carbonate
\({\eCl\eO_3}^{-}\)
chlorate
\({\eCl\eO_2}^{-}\)
chlorite
\({\eCr\eO_4}^{2-}\)
chromate
\({\eC\eN\eO}^{-}\)
cyanate
\({\eC\eN}^{-}\)
cyanide
\({\eCr_2\eO_7}^{2-}\)
dichromate
\({\eH_2\eP\eO_4}^{3-}\)
dihydrogen phosphate
\({\eH_2\eP\eO_3}^{-}\)
dihydrogen phosphite
\({\eH\eC\eO_3}^{-}\)
hydrogen carbonate
\({\eH\eP\eO_4}^{2-}\)
hydrogen phosphate
\({\eH_2\eP\eO_4}^{-}\)
hydrogen phospite
\({\eH\eS\eO_4}^{-}\)
hydrogen sulfate
\({\eH\eS\eO_3}^{-}\)
hydrogen sulfite
\({\eH_3\eO}^{+}\)
hydronium
\({\eO\eH}^{-}\)
hydroxide
\({\eCl\eO}^{-}\)
hypochlorite
\({\eHg_2}^{2+}\)
mercuruous
\({\eN\eO_3}^{-}\)
nitrate
\({\eN\eO_2}^{-}\)
nitrite
\({\eC_2\eO_4}^{2-}\)
oxylate
\({\eCl\eO_4}^{-}\)
perchlorate
\({\eMn\eO_4}^{-}\)
permanganate
\({\eO_2}^{2-}\)
peroxide
\({\eP\eO_4}^{3-}\)
phosphate
\({\eP\eO_3}^{3-}\)
phosphite
\({\eS\eO_4}^{2-}\)
sulfate
\({\eS\eO_3}^{2-}\)
sulfite
\({\eS\eC\eN}^{-}\)
thiocyanate