Valence of Common Ions & Radicals

What are the Positive Monovalent / Univalent Ions?

What are the Negative Monovalent / Univalent Ions?

What are the Positive Divalent / Bivalent Ions?

What are the Negative Divalent / Bivalent Ions?

What are the Positive Trivalent Ions?

What are the Negative Trivalent Ions?

What are the Positive Tetravalent / Quadrivalent Ions?

What are the Negative Tetravalent / Quadrivalent Ions?

What are the Pentavalent / Quinquivalent Ions?

Hydrogen (Monovalent Positive Ion)

H⁺

Lithium (Monovalent Positive Ion)

Li⁺

Sodium (Monovalent Positive Ion)

Na⁺

Potassium (Monovalent Positive Ion)

K⁺

Cupric (Monovalent Positive Ion)

Cu₂²⁺

Aurous (Monovalent Positive Ion)

Au⁺

Silver (Monovalent Positive Ion)

Ag⁺

Ammonium (Monovalent Positive Ion)

NH₄⁺

Mercurous (Monovalent Positive Ion)

Hg⁺ or Hg₂²⁺

Fluoride (Monovalent Negative Ion)

F ^–

Chloride (Monovalent Negative Ion)

Cl ^–

Bromide (Monovalent Negative Ion)

Br ^–

Iodide (Monovalent Negative Ion)

I ^–

Hypo-halite (Monovalent Negative Ion)

XO ^–

Halite (Monovalent Negative Ion)

XO₂ ^–

Halate (Monovalent Negative Ion)

XO₃^–

Per-halate (Monovalent Negative Ion)

XO₄^–

Hypophosphite (Monovalent Negative Ion)

H₂PO₂^–

Bicarbonate (Monovalent Negative Ion)

HCO₃^–

Bisulfate (Monovalent Negative Ion)

HSO₄^–

Bisulfite (Monovalent Negative Ion)

HSO₃^–

Metarsenite (Monovalent Negative Ion)

AsO₂^–

Primary Arsenate (Monovalent Negative Ion)

H₂AsO₄^–

Primary Arsenite (Monovalent Negative Ion)

H₂AsO₃^–

Primary Phosphite (Monovalent Negative Ion)

H₂PO₃^–

Metaborate (Monovalent Negative Ion)

BO₂^–

Metaluminate (Monovalent Negative Ion)

AlO₂^–

Chromite (Monovalent Negative Ion)

CrO₂^–

Nitrite (Monovalent Negative Ion)

NO₂^–

Nitrate (Monovalent Negative Ion)

NO₃^–

Bismuthate (Monovalent Negative Ion)

BiO₃^–

Permanganate (Monovalent Negative Ion)

MnO₄^–

Cyanide (Monovalent Negative Ion)

CN^–

Cyanate (Monovalent Negative Ion)

CNO^–

Thiocyanate (Monovalent Negative Ion)

SCN^–

Argenticyanide (Monovalent Negative Ion)

Ag (CN) ₂^–

Acetate (Monovalent Negative Ion)

CH₃COO or C₂H₃O₂^–

Hydroxide (Monovalent Negative Ion)

OH^–

Formate (Monovalent Negative Ion)

HCOO^–

Primary Phosphate (Monovalent Negative Ion)

H₂PO₄^–

Magnesium (Divalent Positive Ion)

Mg²⁺

Calcium (Divalent Positive Ion)

Ca²⁺

Strontium (Divalent Positive Ion)

Sr²⁺

Plumbous (Divalent Positive Ion)

Pb²⁺

Manganese (Divalent Positive Ion)

Mn²⁺

Mercuric (Divalent Positive Ion)

Hg²⁺

Barium (Divalent Positive Ion)

Ba²⁺

Cadmium (Divalent Positive Ion)

Cd²⁺

Cobaltous (Divalent Positive Ion)

Co²⁺

Cupric (Divalent Positive Ion)

Cu²⁺

Ferrous (Divalent Positive Ion)

Fe²⁺

Molybdenum (Divalent Positive Ion)

Mo²⁺

Nickelous (Divalent Positive Ion)

Ni²⁺

Stannous (Divalent Positive Ion)

Sn²⁺

Zinc (Divalent Positive Ion)

Zn²⁺

Oxide (Divalent Negative Ion)

O^{2 –}

Peroxide (Divalent Negative Ion)

O₂ ^{2 –}

Sulfide (Divalent Negative Ion)

S^2–

Sulfite (Divalent Negative Ion)

SO₃^2–

Sulfate (Divalent Negative Ion)

SO₄^2–

Thiosulfate (Divalent Negative Ion)

S₂O₃^2–

Persulfate (Divalent Negative Ion)

S₄O₈^{2 –}

Pyrosulfate (Divalent Negative Ion)

S₂O₇^2-

Tetrathionate (Divalent Negative Ion)

S₄O₆^2-

Secondary Arsenate (Divalent Negative Ion)

HAsO₄^2-

Secondary Arsenite (Divalent Negative Ion)

HAsO₃^2-

Secondary Phosphite (Divalent Negative Ion)

HPO₃^2-

Secondary Phosphate (Divalent Negative Ion)

HPO₄^2-

Stannite (Divalent Negative Ion)

SnO₂^2-

Stannate (Divalent Negative Ion)

SnO₃^2-

Chromate (Divalent Negative Ion)

CrO₄^2-

Dichromate (Divalent Negative Ion)

Cr₂O₇^2-

Carbonate (Divalent Negative Ion)

CO₃^2-

Oxalate (Divalent Negative Ion)

C₂O₄^2-

Manganate (Divalent Negative Ion)

MnO₄^2-

Molybdate (Divalent Negative Ion)

MoO₄^2-

Zincate (Divalent Negative Ion)

ZnO₂^2-

Tetraborate (Divalent Negative Ion)

B₄O₇^2-

Metasilicate (Divalent Negative Ion)

SiO₃^2-

Plumbite (Divalent Negative Ion)

PbO₂^2-

Tartrate (Divalent Negative Ion)

C₄H₄O₆^2-

Aluminum (Trivalent Positive Ion)

Al³⁺

Antimonous (Trivalent Positive Ion)

Sb³⁺

Arsenous (Trivalent Positive Ion)

As³⁺

Auric (Trivalent Positive Ion)

Au³⁺

Bismuth (Trivalent Positive Ion)

Bi³⁺

Chromic (Trivalent Positive Ion)

Cr³⁺

Cobaltic (Trivalent Positive Ion)

Co³⁺

Ferric (Trivalent Positive Ion)

Fe³⁺

Nickelic (Trivalent Positive Ion)

Ni³⁺

Borate (Trivalent Negative Ion)

BO₃^3-