A-Level Chemistry Ions to Memorise

Hover or tap each card to flip and reveal the formula.

Ammonium

NH₄⁺

Iron(II)

Fe²⁺

Iron(III)

Fe³⁺

Copper(II)

Cu²⁺

Zinc

Zn²⁺

Silver

Ag⁺

Lead(II)

Pb²⁺

Tin(II)

Sn²⁺

Hydroxide

OH⁻

Nitrate

NO₃⁻

Nitrite

NO₂⁻

Sulfate

SO₄²⁻

Sulfite

SO₃²⁻

Carbonate

CO₃²⁻

Hydrogen carbonate

HCO₃⁻

Phosphate

PO₄³⁻

Chromate(VI)

CrO₄²⁻

Dichromate(VI)

Cr₂O₇²⁻

Manganate(VII)

MnO₄⁻

Cyanide

CN⁻

Thiosulfate

S₂O₃²⁻