POLYATOMICS

name:                                                symbol                                            charge

ammonium                                         NH₄                                                   1+

hydroxide                                            OH                                                     1-

acetate                                              C₂H₃O₂                                               1-

ethanoate                                         CH₃COO                                              1-

nitrate                                                  NO₃                                                   1-    

hypochlorite                                        CIO                                                     1-

chlorite                                                CIO₂                                                   1-

chlorate                                               CIO₃                                                  1-

perchlorate                                          CIO₄                                                   1-

permanganate                                    MnO₄                                                   1-

bicarbonate                                         HCO₃                                                  1-

carbonate                                            CO₃                                                     2-

sulfate                                                 SO₄                                                      2-

phosphate                                           PO₄                                                      3-