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AP Chemistry Periodic Table and Common Ions Cheat Sheet by

Groups 1,2,13-18 of the Periodic Table and a list of Common Ions

Group 1

Hydrogen
H
Lithium
Li
Sodium
Na
Potassium
K
Rubidium
Rb
Cesium
Cs
Francium
Fr

Group 2

Beryllium
Be
Magnesium
Mg
Calcium
Ca
Strontium
Sr
Barium
Ba
Radium
Ra

Group 13

Boron
B
Aluminum
Al
Gallium
Ga
Indium
In
Titanium
Ti

Group 14

Carbon
C
Silicon
Si
Germanium
Ge
Tin
Sn
Lead
Pb

Group 15

Nitrogen
N
Phosph­orous
P
Arsenic
As
Antimony
Sb
Bismuth
Bi

Group 16

Oxygen
O
Sulfur
S
Selenium
Se
Tellurium
Te
Polonium
Po
 

Group 17

Fluorine
F
Chlorine
Cl
Bromine
Br
Iodine
I
Astatine
At

Group 18

Helium
He
Neon
Ne
Argon
Ar
Krypton
Kr
Xenon
Xe
Radon
Rn

1+

Ammonium
NH4+
Copper(I)
Cu+
Hydrog­en/­Hyd­ronium
H+,H­3O+
Lithium
Li+
Potassium
K+
Silver
Ag+
Sodium
Na+

2+

Barium
Ba2+
Cadmium
Cd2+
Calcium
Ca2+
Cobalt
Co2+
Chromi­um(II)
Cr2+
Copper(II)
Cu2+
Iron(II)
Fe2+
Lead(II)
Pb2+
Magensium
Mg2+
Mangan­ese(II)
Mn2+
Mercury(I)
Hg2+
Mercur­y(II)
Hg2+
Nickel
Ni2+
Strontium
Sr2+
Tin(II)
Sn2+
Zinc
Zn2+
 

3+

Aluminum
Al3+
Chromi­um(III)
Cr3+
Iron(III)
Fe3+
Scandium
Sc3+

4+

Tin(IV)
Sn4+

1-

Acetate
C2H3O2-
Bromide
Br-
Hydrogen Carbonate (Bicar­bonate)
HCO3-
Chlorate
ClO3-
Chlorite
ClO2-
Chloride
Cl-
Flouride
F-
Hydride
H-
Hydroxide
OH-
Hypoch­lorite
ClO-
Iodide
I-
Nitrate
NO3-
Nitrite
NO2-
Perchl­orate
ClO4-
Perman­ganate
MnO4-
Dihydrogen Phosphate
H2PO4-
Hydrogen Sulfate (Bisul­fate)
HSO4-
Hydrogen Sulfite (Bisul­fite)
HSO3-
Hydrogen Sulfide (Bisulfide
HS-

2-

Carbonate
CO32-
Chromate
CrO42-
DiChromate
Cr2O72-
Oxalate
C2O42-
Monohy­drogen Phosphate
HPO42-
Sulfate
SO42-
Sulfite
SO32-
Sulfide
S2-

3-

Phosphate
PO43-
Phosphite
PO33-
       

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