CHEMISTRY
engrawen
I. Elements
A. NONVALENT
Name
Symbols
Oxidation
Number
Name
Symbols
Oxidation
Number
Name
Symbols
Oxidation
Number
1 Hydrogen
2 Lithium
3 Potassium
H
Li
K
1
1
1
4 Silver
5 Sodium
6 Bromine
Ag
Na
Br
1
1
-1
7 Chlorine
8 Fluorine
9 Iodine
Cl
F
I
-1
-1
-1
Ba
Cd
Ca
2
2
2
4 Magnesium
5 Silicon
6 Strontium
Mg
Si
Sr
2
2
2
7 Zinc
8 Oxygen
9 Sulfur
Zn
O
S
2
-2
-2
Al
3
Nitrogen
N
-3
B. BiVALENT (DIVALENT)
1 Barium
2 Cadmium
3 Calcium
C. TRIVALENT
Aluminum
D. SOME ELEMENTS WITH VARIABLE OXIDATION NUMBER
Name
Symbols
Oxidation
Number
Name
Symbols
Oxidation
Number
Name
Symbols
Oxidation
Number
1 Aurous or Gold (I)
Auric or Gold (III)
Au
Au
1
3
5 Plumbous or Lead (II)
Plumbic or Lead (IV)
Pb
Pb
2
4
9 Cobaltous
Cobaltic
Co
Co
2
3
2 Cuproaz or Copper (I)
Cupric or Copper (II)
Cu
Cu
1
2
6 Stannous or Tin (II)
Stannic or Tin (IV)
Sn
Sn
2
4
10 Manganous
Manganic
Mn
Mn
2
3
3 Ferrous or Iron (II)
Ferric or Iron (III)
Fe
Fe
2
3
7 Arsenious
Arsenic
As
As
3
5
11 Nickelcus
Nickelic
Ni
Ni
2
3
4 Mercurous or Mercury (I)
Mercuric or Mercury (II)
Hg
Hg
1
2
8 Chromous
Chromic
Cr
Cr
2
3
12 Nitrous
Nitric
N
N
1
2
Name
Formula
Oxidation
Number
Name
Formula
Oxidation
Number
17 Chlorite
18 Chromate
19 Chromite
20 Cyanide
21 Dichromate
22 Ferricyanide
23 Ferrocynanide
24 Hydroxide
25 Iodate
26 Iodite
27 Manganate
28 Manganite
29 Molybdate
30 Nitrate
31 Nitrite
ClO2
CrO4
CrO2
CN
Cr2O7
Fe(CN)6
Fe(CN)6
OH
IO2
IO3
MnO4
MnO3
MoO3
NO3
NO2
-1
-2
-1
-1
-2
-3
-4
-1
-1
-1
-2
-2
-2
-1
-1
32 Oxalate
33 Permanganate
34 Peroxide
35 Phosphate
36 Phosphite
37 Plumbmate
38 Silicate
39 Stannite
40 Sulfate
41 Sulfite
42 Thlocyanate
43 Thlosulfate
44 Tungstate
45 Zincate
46 Biphosphate
C2O4
MnO4
O2
PO4
PO3
PbO4
SiO3
SnO2
SO4
SO3
CNS
S2O3
WO4
ZnO4
HPO4
-2
-1
-2
-3
-3
-4
-2
-2
-2
-2
-1
-2
-2
-2
-2
II. RADICALS OR POLYATOMIC IONS
Name
Formula
Oxidation
Number
1 Acetate
C2H3O2 or
2 Aluminate
3 Aluminite
4 Ammonium
5 Antimonate
6 Antimonite
7 Arsenate
8 Arsenite
9 Bicarbonate
10 Bisulfate
11 Bisulite
12 Borate
13 Bromate
14 Bromite
15 Carbonate
16 Chlorate
CH3COO
AlO3
AlO2
NH4
SbO4
SbO3
AsO4
AsO3
HCO3
HSO4
HSO3
BO3
BrO3
BrO2
CO3
ClO3
-1
-3
-1
1
-3
-3
-3
-3
-1
-1
-1
-3
-1
-1
-2
-1