Common Cations and Anions

Table 5.3.1 Common Cations

Table 5.3.1 Common cations and Table 5.3.2 Common anions

Monovalent Cations

  • Hydrogen: H+H^+
  • Lithium: Li+Li^+
  • Sodium: Na+Na^+
  • Potassium: K+K^+
  • Copper(I): Cu+Cu^+
  • Silver: Ag+Ag^+
  • Ammonium: NH4+NH_4^+

Divalent Cations

  • Magnesium: Mg2+Mg^{2+}
  • Calcium: Ca2+Ca^{2+}
  • Barium: Ba2+Ba^{2+}
  • Iron(II): Fe2+Fe^{2+}
  • Copper(II): Cu2+Cu^{2+}
  • Zinc: Zn2+Zn^{2+}
  • Tin(II): Sn2+Sn^{2+}
  • Lead(II): Pb2+Pb^{2+}

Trivalent Cations

  • Iron(III): Fe3+Fe^{3+}
  • Aluminium: Al3+Al^{3+}

Table 5.3.2 Common Anions

Monovalent Anions

  • Fluoride: F−F^-
  • Chloride: Cl−Cl^-
  • Bromide: Br−Br^-
  • Iodide: I−I^-
  • Hydride: H−H^-
  • Hydroxide: OH−OH^-
  • Nitrite (nitrate(III)): NO2−NO_2^-
  • Nitrate (nitrate(V)): NO3−NO_3^-
  • Manganate(VII): MnO4−MnO_4^-
  • Hydrogensulfate: HSO4−HSO_4^-
  • Hydrogencarbonate: HCO3−HCO_3^-
  • Ethanoate: CH3COO−CH_3COO^-

Divalent Anions

  • Oxide: O2−O^{2-}
  • Sulfide: S2−S^{2-}
  • Carbonate: CO32−CO_3^{2-}
  • Sulfite (sulfate(IV)): SO32−SO_3^{2-}
  • Sulfate (sulfate(VI)): SO42−SO_4^{2-}
  • Dichromate(VI): Cr2O72−Cr_2O_7^{2-}

Trivalent Anions

  • Nitride: N3−N^{3-}
  • Phosphate: PO43−PO_4^{3-}