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Common ions +1, +2, -1 and -2
Common ions to remember
57
Chemistry
11th Grade
01/28/2008
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Term
Sodium ion
 Definition
Na +1
Term
Cesium ion
 Definition
Cs +1
Term
Hydrogen ion
 Definition
H +1
Term
Rubidium ion
 Definition
Rb +1
Term
Lithium ion
 Definition
Li +1
Term
Silver ion
 Definition
Ag +1
Term
Copper (I) ion
 Definition
Cu +1 ;Roman numeral indicates the charge of this multiple oxidation number ion
Term
Potassium ion
 Definition
K +1
Term
Ammonium ion
 Definition
NH4 +1 ;Only positive polyatomic ion
Term
Mercury (I) ion
 Definition
Hg +1
Term
Chloride
 Definition
Cl -1
Term
Fluoride
 Definition
F -1
Term
Bromide
 Definition
Br -1
Term
Iodide
 Definition
I -1
Term
Hydride
 Definition
H -1
Term
Permanganate
 Definition
MnO4 -1
Term
Perchlorate
 Definition
ClO4 -1
Term
Chlorate
 Definition
ClO3 -1
Term
Chlorite
 Definition
ClO2 -1
Term
Hypochlorite
 Definition
ClO -1
Term
Bromate
 Definition
BrO3 -1
Term
Iodate
 Definition
IO3 -1
Term
Cyanide
 Definition
CN -1
Term
Hydroxide
 Definition
OH -1
Term
Acetate
 Definition
C2H3O2 -1
Term
Nitrate
 Definition
NO3 -1
Term
Nitrite
 Definition
NO2 -1
Term
Bicarbonate or Hydrogen Carbonate
 Definition
HCO3 -1
Term
Bisulfate or Hydrogen Sulfate
 Definition
HSO4 -1
Term
Bisulfite or Hydrogen Sulfite
 Definition
HSO3 -1
Term
Sr +2
 Definition
Strontium ion
Term

O2 -2

 Definition
Peroxide
Term
Co +2
 Definition
Cobalt (II) ion
Term
SeO4 -2
 Definition
Selenate
Term
Cu +2
 Definition
Copper (II) ion
Term

C2O4 -2

 Definition
Oxalate
Term
Fe +2
 Definition
Iron (II) ion
Term
SiF6 -2
 Definition
Hexafluorosilicate
Term

Zn +2

 Definition

Zinc ion
Term

C4H4O6 -2

 Definition
Tartrate
Term
Ca +2
 Definition
Calcium ion
Term
CO3 -2
 Definition
Carbonate
Term

Hg2 +2

 Definition
Mercury (II) ion
Term
SO4 -2
 Definition
Sulfate
Term
Pb +2
 Definition
Lead (II) ion
Term
SO3 -2
 Definition
Sulfite
Term

Cd +2

 Definition
Cadmium ion
Term
CrO4 -2
 Definition
Chromate
Term
Mn +2
 Definition
Manganese (II) ion
Term
Cr2O7 -2
 Definition

Dichromate
Term
Ni +2
 Definition
Nickel (II) ion
Term
S -2
 Definition
Sulfide
Term
Ba +2
 Definition
Barium ion
Term
O -2
 Definition
Oxide
Term
Sn +2
 Definition

Tin (II) ion
Term
SiO3 -2
 Definition
Silicate
Term
Se -2
 Definition
Selenide
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