Ions to Memorize

charge of all N ions

charge of all N ions

-1

charge of all S ions

-2

charge of all Cr ions

-2

charge of all Cl ions

-1

Acetate

C₂H₃O₂⁻ (CH₃COO⁻)

Ammonium

NH₄⁺

Carbonate

CO₃²⁻

Chlorate

ClO₃⁻

Chlorite

ClO₂⁻

Hypochlorite

ClO⁻

Perchlorate

ClO₄⁻

Chromate

CrO₄²⁻

Cyanide

CN⁻

Dichromate

Cr₂O₇²⁻

Hydrogen Carbonate

HCO₃⁻

Hydroxide

OH⁻

Nitrate

NO₃⁻

Nitrite

NO₂⁻

Permanganate

MnO₄⁻

Phosphate

PO₄³⁻

Sulfate

SO₄²⁻

Sulfite

SO₃²⁻

Cuprous

Cu⁺

Cupric

Cu²⁺

Ferrous

Fe²⁺

Ferric

Fe⁺³

Peroxide

O₂²⁻

Mercury (I)

Hg₂²⁺

Zinc (No Roman Numerals)

Zn²⁺

Cadmium (No Roman Numerals)

Cd²⁺

Silver (No Roman Numerals)

Ag¹⁺

Aluminum (No Roman Numerals)

Al³⁺