Polyatomic Ions and Prefixes

Prefixes

1

mono

2

di

3

tri

4

tetra

5

pent

6

hex

7

hept

8

oct

9

non

10

dec

Polyatomic ions

Nitrate

NO3 -

Nitrite

NO2 –

Ammonium

NH4 +

Sulfate

SO4 2-

Sulfite

SO3 2-

Phosphate

PO4 3-

Phosphite

PO3 3-

Carbonate

CO3 2-

Bicarbonate

HCO3 –

Acetate

C2H3O2 –

Cyanide

CN –

Chlorate

ClO3 –

Chlorite

Cl02 –

Peroxide

O2 2-

Borate

BO3 3-

Hydroxide

OH –

Hydronium

H3O +

Permanganate

MnO4 –

Chromate

CrO4 2-

Dichromate

Cr2O7 2-