CHARGES Assignment – Chapter 7
Directions: Each ion below should be made into a flash card (index card or 3x5 inch paper) with the symbol/name on
one side and the charge(s) on the other side. Memorize the charges for these ions and have the flash cards ready to
submit for a grade on Tuesday, January 8th. Charges quiz will be Wednesday, January 8th.
Note: Charges shown below may not include all known charges, but they are the charges we will use.
MONOATOMIC IONS
ION SYMBOL
CHARGE
ION SYMBOL
CHARGE
H
+1, -1
Cu
+1, +2
Li
+1
Ag
+1
Na
+1
Au
+1, +3
K
+1
Zn
+2
Rb
+1
Cd
+2
Cs
+1
Hg
+2
\Be
+2
Al
+3
Mg
+2
B
+3
Ca
+2
N
-3
Sr
+2
P
-3
Ba
+2
As
+3, +5
Sc
+3
O
-2
Ti
+3, +4
S
-2
Zr
+4
F
-1
V
+2, +3, +4
Cl
-1
Cr
+2, +3
Br
-1
Mn
+2
I
-1
Mo
+2, +3
Sn
+2, +4
Co
+2, +3
Pb
+2, +3, +4
Fe
+2, +3
C
+2, +4
Ni
+2, +3
Si
+4
POLYATOMIC IONS
NAME
Ammonium
ION
NH4
Dimercury
Hg2
CHARGE
+1
NAME
Carbonate
ION
CHARGE
CO3
-2
+2
Chromate
CrO4
-2
DiChromate
Cr2O7
-2
Acetate
CH3COO
-1
Oxalate
C2O4
-2
Perchlorate
ClO4
-1
Peroxide
O2
-2
Chlorate
ClO3
-1
Sulfate
SO4
-2
Chlorite
ClO2
-1
Sulfite
SO3
-2
Hypochlorite
ClO
-1
Cyanide
CN
-1
Hydroxide
OH
-1
Arsenate
AsO4
-3
Nitrate
NO3
-1
Phosphate
PO4
-3
Nitrite
NO2
-1
Phosphite
PO3
-3
Permanganate MnO4
-1