AP Chemistry Polyatomic Ions Flashcards

Nitrite

NO₂⁻

Nitrate

NO₃⁻

Carbonate

CO₃²⁻

Hydrogen Carbonate (bicarbonate)

HCO₃⁻

Sulfite

SO₃²⁻

Sulfate

SO₄²⁻

Hydrogen Sulfate

HSO₄⁻

Hydrogen sulfite

HSO₃⁻

Phosphite

PO₃³⁻

Phosphate

PO₄³⁻

Hydrogen phosphate

HPO₄²⁻

Dihydrogen phosphate

H₂PO₄⁻

Hydrogen Phosphite

HPO₃²⁻

Hypochlorite

ClO⁻

Chlorite

ClO₂⁻

Chlorate

ClO₃⁻

Perchlorate

ClO₄⁻

Hypobromite

BrO⁻

Bromite

BrO₂⁻

Bromate

BrO₃⁻

Perbromate

BrO₄⁻

Hypoiodite

IO⁻

Iodite

IO₂⁻

Iodate

IO₃⁻

Periodate

IO₄⁻

Permanganate

MnO₄⁻

Chromate

CrO₄²⁻

Dichromate

Cr₂O₇²⁻

Hydroxide

OH⁻

Cyanide

CN⁻

Acetate

C₂H₃O₂⁻

Peroxide

O₂²⁻

Thiocyanate

SCN⁻

Oxalate

C₂O₄²⁻

Ammonium

NH₄⁺

Sulfuric acid

H₂SO₄

Sulfurous acid

H₂SO₃

Nitric acid

HNO₃

Nitrous acid

HNO₂

Phosphoric acid

H₃PO₄

Phosphorous acid

H₃PO₃

Hydrochloric acid

HCl

Acetic acid

HC₂H₃O₂

-ate

Most common number of oxygen atoms

-ite

One less oxygen than -ate

Hypo-

One less oxygen than -ite

Per-

One more oxygen than -ate

Which elements are diatomic?

H₂, O₂, F₂, Br₂, I₂, N₂, Cl₂

What does the acronym of Have No Fear Of Ice Cold Beer stand for?

• H = Hydrogen

• N = Nitrogen

• F = Fluorine

• O = Oxygen

• I = Iodine

• Cl = Chlorine

• Br = Bromine

Carbonite

CO₂²⁻