Fe
3+
Fe
2+
iron (III)
iron (II)
26
atomic
number
ion
charge
ion
name
symbol
(IUPAC)
KEY
58 59 60 61 62 63 64 65 66 67 68 69 70 71
90 91 92 93 94 95 96 97 98 99 100 101 102 103
Ce
3+
cerium
Pr
3+
praseodymium
Nd
3+
neodymium
Pm
3+
promethium
Sm
3+
samarium(III)
samarium(II)
Eu
3+
Eu
2+
europium (III)
europium (II)
Th
4+
thorium
Pa
5+
Pa
4+
protactinium(V)
protactinium(IV)
U
6+
U
4+
uranium (VI)
uranium (IV)
Gd
3+
gadolinium
Tb
3+
terbium
Dy
3+
dysprosium
Ho
3+
holmium
Er
3+
erbium
Tm
3+
thulium
Yb
3+
Yb
2+
ytterbium(III)
ytterbium(II)
Sm
2+
Lu
3+
lutetium
Np
5+
Pu
4+
Pu
6+
plutonium(IV)
Am
3+
Am
4+
americium(IV)
americium(III)
neptunium
Bk
3+
Bk
4+
berkelium(IV)
berkelium(III)
Cm
3+
curium
Cf
3+
californium
Es
3+
einsteinium
Fm
3+
fermium
Md
2+
Md
3+
mendelevium (II)
mendelevium (III)
Lr
3+
lawrencium
No
2+
No
3+
nobelium(II)
nobelium(III)
plutonium(VI)
1
2
3 4
5 6 7 8 9 10
13 14 15 16 17 18
11 12
19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36
Ti
4+
titanium (IV)
Ti
3+
titanium (III)
V
3+
vanadium(III)
V
5+
vanadium (V)
Cr
3+
Cr
2+
chromium (III)
chromium (II)
Mn
2+
Mn
4+
manganese(II)
manganese(IV)
Fe
3+
Fe
2+
iron (III)
iron (II)
Co
2+
Co
3+
cobalt (II)
cobalt (III)
Ni
2+
Ni
3+
nickel (II)
nickel (III)
Cu
2+
Cu
+
copper (II)
copper (I)
Ga
3+
gallium
Sc
3+
scandium
Y
3+
yttrium
La
3+
lanthanum
Ac
3+
actinium
Zr
4+
zirconium
Hf
4+
hafnium
Nb
5+
Nb
3+
niobium (V)
niobium(III)
37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54
Mo
6+
molybdenum
Rh
3+
rhodium
Ru
3+
Ru
4+
ruthenium(III)
ruthenium(IV)
Pd
2+
Pd
4+
paladium(II)
paladium(IV)
Ag
+
silver
Cd
2+
cadmium
Pt
4+
Pt
2+
platinum(IV)
platinum(II)
55 56 57 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86
Au
3+
Au
+
gold (III)
gold (I)
Hg
2+
mercury (II)
Tl
+
Tl
3+
thallium (I)
thallium(III)
Pb
2+
Pb
4+
lead (II)
lead (IV)
Bi
3+
Bi
5+
bismuth(III)
bismuth(V)
Sn
4+
Sn
2+
tin (IV)
tin (II)
Sb
3+
Sb
5+
antimony(III)
antimony(V)
Tc
7+
technitium
Ta
5+
tantalum
W
6+
tungsten
Re
7+
rhenium
Os
4+
osmium
Ir
4+
iridium
87 88 89
H
+
hydrogen
Li
+
lithium
Be
2+
beryllium
Na
+
sodium
Mg
2+
magnesium
K
+
potassium
Ca
2+
Rb
+
rubidium
Sr
2+
strontium
Cs
+
cesium
Ba
2+
calcium
barium
Fr
+
francium
Ra
2+
radium
B
boron
C
carbon nitride
N
3-
oxide
O
2-
fluoride
F
-
neon
Ne
Al
3+
aluminum
Si
silicon phosphide
P
3-
sulfide
S
2-
chloride
Cl
-
argon
Ar
helium
He
Zn
2+
zinc
In
3+
indium
Ge
4+
germanium
As
3-
arsenide selenide
Se
2-
bromide
Br
-
krypton
Kr
telluride
Te
2-
Po
2+
polonium(II)
polonium(IV)
Po
4+
iodide
I
-
xenon
Xe
astatide
At
-
radon
Rn
hydride
H
-
1
1
2
3 4 5 6 7 8 9 10 11 12
13 14 15 16
17 18
PERIODIC TABLE OF IONS
acetate
arsenate
arsenite
benzoate
borate
bromate
carbonate
chlorate
chlorite
chromate
cyanate
cyanide
dichromate
CH
3
COO
–
AsO
4
3–
AsO
3
3–
C
6
H
5
COO
–
BO
3
3–
BrO
3
–
CO
3
2–
ClO
3
–
ClO
2
–
CrO
4
2–
CNO
–
CN
–
Cr
2
O
7
2–
oxalate
perchlorate
periodate
permanganate
peroxide
phosphate
pyrophosphate
sulfate
sulfite
thiocyanate
thiosulfate
ammonium
hydronium
C
2
O
4
2–
ClO
4
–
IO
4
–
MnO
4
–
O
2
2–
PO
4
3–
P
2
O
7
4–
SO
4
2–
SO
3
2–
SCN
–
S
2
O
3
2–
NH
4
+
H
3
O
+
POSITIVE POLYATOMIC IONS
TABLE OF POLYATOMIC IONS
H
2
PO
4
–
HCO
3
–
HC
2
O
4
–
HSO
4
–
HS
–
HSO
3
–
OH
–
ClO
–
IO
3
–
HPO
4
2–
NO
3
–
NO
2
–
SiO
4
4–
hydrogen carbonate
hydrogen oxalate
hydrogen sulfate
hydrogen sulfide
hydrogen sulfite
hydroxide
hypochlorite
iodate
nitrate
nitrite
orthosilicate
monohydrogen phosphate
dihydrogen phosphate
Hg
2
2+
mercury (I)
