Common Ions Chart
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1
2Common Ions
1
18
1A
8A
1
2
Note patterns and try note cards. You should know formulas, names, charges.
H
He
2
13
14
15
16
17
+1 (-1)
2A
3A
4A
5A
6A
7A
3
4
5
6
7
8
9
10
All monatomic ions formed by main group elements in columns 1A, 2A, 3A, 5A,
Li
Be
B
C
N
O
F
Ne
6A, and 7A
+1
+2
-3
-2
-1
11
12
13
14
15
16
17
18
Na
Mg
Al
Si
P
S
Cl
Ar
+1
+2
+3
-3
-2
-1
Cations:
“metal name ion”
19
20
31
32
33
34
35
36
charge = A column number
K
Ca
Ga
Ge
As
Se
Br
Kr
+1
+2
-2
-1
Anions:
“nonmetal root – ide” ion
37
38
49
50
51
52
53
54
charge = 8 – A column number
Rb
Sr
In
Sn
Sb
Te
I
Xe
+1
+2
-2
-1
55
56
81
82
83
84
85
86
+
NH
ammonium ion
Cs
Ba
Tl
Pb
Bi
Po
At
Rn
4
+1
+2
87
88
113
114
115
116
117
118
-
-
2-
Cs
Ra
Uuq
Uuh
Uuo
OH
hydroxide
C
H
O
acetate
CO
carbonate
2
3
2
3
+1
+2
-
HCO
hydrogen carbonate
3
-
2-
3-
NO
nitrate
SO
sulfate
PO
phosphate
3
4
4
-
2-
3-
NO
nitrite
SO
sulfite
PO
phosphite
2
3
3
-
2-
HSO
hydrogen sulfate
HPO
hydrogen phosphate
4
4
-
2-
HSO
hydrogen sulfite
HPO
hydrogen phosphite
3
3
-
H
PO
dihydrogen phosphate
2
4
-
H
PO
dihydrogen phosphite
2
3
+
Cu
copper (I)
2+
Cu
copper (II)
2+
Hg
mercury (I)
2
3
4
5
6
7
8
9
10
11
12
14
2+
Hg
mercury (II)
3B
4B
5B
6B
7B
8B
8B
8B
1B
2B
4A
21
22
23
24
25
26
27
28
29
30
2+
Sc
Ti
V
Cr
Mn
Fe
Co
Ni
Cu
Zn
Co
cobalt (II)
3+
+2, +3 +2, +3 +2, +3 +2, +3
+2
+1, +2
+2
Co
cobalt (III)
2+
39
40
41
42
43
44
45
46
47
48
50
Cr
chromium (II)
3+
Y
Zr
Nb
Mo
Tc
Ru
Rh
Pd
Ag
Cd
Sn
Cr
chromium (III)
+1
+2
+2, +4
2+
Fe
iron (II)
3+
57
72
73
74
75
76
77
78
79
80
82
Fe
iron (III)
La
Hf
Ta
W
Re
Os
Ir
Pt
Au
Hg
Pb
2+
Mn
manganese (II)
+1, +2
+2, +4
3+
Mn
manganese (III)
2+
2+
Sn
tin (II)
Pb
lead (II)
4+
4+
Sn
tin (IV)
Pb
lead (IV)
+
2+
Ag
silver
Cd
cadmium
+
2+
H
O
hydronium
Ni
nickel
3
2+
Zn
zinc
-
-
2-
CN
cyanide
ClO
perchlorate
CrO
chromate
4
4
-
-
2-
SCN
thiocyanate
ClO
chlorate
Cr
O
dichromate
3
2
7
-
-
2-
MnO
permanganate ClO
chlorite
C
O
oxalate
4
2
2
4
-
2-
ClO
hypochlorite
O
peroxide
2
CONGRATULATIONS! You’ve memorized the whole table.
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