Polyatomic ions

all on reference sheet, these must be memorized

-ate

normal ending

-ite

one less oxygen

per-

one more oxygen

hypo-ite

two less oxygen than -ate

acetate ion

CH₃COO^-

chlorate ion

ClO₃^-

Iodate ion

IO₃^-

bromate ion

BrO₃^-

florate ion

FO₃^-

cyanide ion

CN^-

hydroxide ion

OH^-

nitrate ion

NO₃^-

permangatate ion

MnO₄^-

carbonate ion

CO₃^2-

bicarbonate ion

HCO₃^-

peroxide ion

O₂²⁻

sulfate ion

SO₄^2-

phosphate

PO₄^3-

ammonium ion

NH₄⁺

ammonia

NH₃ (neutral)

arsine

AsH₃ (neutral)

stibine

SbH₃ (neutral)

water

H₂O (neutral)

ozone

O₃ (neutral)

phosphine

PH₃ (neutral)

borane

BH₃ (neutral)