Cations, Anions, and Polyatomics

Aluminum Al³⁺

Ammonium NH₄⁺

Barium Ba²⁺

Cadmium Cd²⁺

Calcium Ca²⁺

Cesium Cs⁺

Chromium(III) Cr³⁺

Cobalt(II) Co²⁺

Copper(I) Cu⁺

Copper(II) Cu²⁺

Hydrogen H⁺

Iron(II) Fe²⁺

Iron(III) Fe³⁺

Lead(II) Pb²⁺

Lithium Li⁺

Magnesium Mg²⁺

Manganese(II) Mn²⁺

Potassium K⁺

Rubidium Rb⁺

Silver Ag⁺

Sodium Na⁺

Strontium Sr²⁺

Tin(II) Sn²⁺

Zinc Zn²⁺

Bicarbonate HCO₃⁻

Bisulfate HSO₄⁻

Bromide Br⁻

Carbonate CO₃²⁻

Chlorate ClO₃⁻

Chloride Cl⁻

Chromate CrO₄²⁻

Cyanide CN⁻

Dichromate Cr₂O₇²⁻

Dihydrogen phosphate H₂PO₄⁻

Fluoride F⁻

Hydrogen phosphate HPO₄²⁻

Hydroxide OH⁻

Iodide I⁻

Nitrate NO₃⁻

Nitride N³⁻

Nitrite NO₂⁻

Oxide O²⁻

Permanganate MnO₄⁻

Peroxide O₂²⁻

Phosphate PO₄³⁻

Sulfate SO₄²⁻

Sulfide S²⁻

Sulfite SO₃²⁻

Thiocyanate SCN⁻