Ions

• What is the formula for the ammonium ion?

  NH4^-
• What is the formula for the hydronium ion?

  H3O-
• What is the formula for the hydroxide ion?

  OH-
• What is the formula for the cyanide ion?

  CN^-
• What is the formula for the peroxide ion?

  O2^-2
• What is the formula for the carbonate ion?

  CO₃^2-
• What is the formula for the oxalate ion?

  C₂O₄^2-
• What is the formula for the nitrite ion?

  NO₂^-
• What is the formula for the nitrate ion?

  NO₃^-
• What is the formula for the phosphite ion?

  PO₃^3-
• What is the formula for the phosphate ion?

  PO₄^3-
• What is the formula for the sulfite ion?

  SO₃^2-
• What is the formula for the sulfate ion?

  SO₄^2-
• What is the formula for the thiosulfate ion?

  S₂O₃^2-
• What is the formula for the hypochlorite ion?

  ClO^-
• What is the formula for the chlorite ion?

  ClO₂^-
• What is the formula for the chlorate ion?

  ClO₃^-
• What is the formula for the perchlorate ion?

  ClO₄^-
• What is the formula for the acetate ion?

  CH₃COO^- or C₂H₃O₂^-
• What is the formula for the arsenate ion?

  AsO₄^3-
• What is the formula for the borate ion?

  BO₃^3-
• What is the formula for the silicate ion?

  SiO₃^2-
• What is the formula for the permanganate ion?

  MnO₄^-
• What is the formula for the chromate ion?

  CrO₄^2-
• What is the formula for the dichromate ion?

  Cr₂O₇^2-
• What is the formula for the formate ion?

  CHO₂^-
• What is the formula for the hydrogen carbonate ion?

  HCO₃^- or bicarbonate
• What is the formula for the hydrogen sulfite ion?

  HSO₃^- or bisulfite
• What is the formula for the hydrogen sulfate ion?

  HSO₄^- or bisulfate
• What is the formula for the hydrogen phosphate ion?

  HPO₄^2-
• What is the formula for the dihydrogen phosphate ion?

  H₂PO₄^-
• What is the charge of a hydrogen ion?

  H⁺
• What is the formula for the lithium ion?

  Li⁺
• What is the formula for the sodium ion?

  Na⁺
• What is the formula for the potassium ion?

  K⁺
• What is the formula for the rubidium ion?

  Rb⁺
• What is the formula for the cesium ion?

  Cs⁺
• What is the formula for the silver ion?

  Ag⁺
• What is the formula for the magnesium ion?

  Mg²⁺
• What is the formula for the calcium ion?

  Ca²⁺