Looks like no one added any tags here yet for you.
Ammonium
NH4 (1+)
Mercury(I)
Hg2 (2+)
Acetate
C2H3O2 (1-)
Nitrite
NO2(1-)
Nitrate
NO3(1-)
Azide
N3(1-)
Hydroxide
OH(1-)
Cyanide
CN(1-)
Thiocyanate
SCN(1-)
Cyanate
OCN(1-)
Permanganate
MnO4(1-)
Superoxide
O2(1-)
Hydrogen Carbonate
HCO3(1-)
Hydrogen sulfite
HSO3(1-)
Hydrogen Sulfate
HSO4(-1)
Hydrogen Phosphate
HPO4(2-)
Dihydrogen phosphate
H2PO4(1-)
Perchlorate
ClO4(1-)
Chlorate
ClO3(1-)
Chlorite
ClO2(1-)
Hypochlorite
ClO(1-)
Perbromate
BrO4(1-)
Bromate
BrO3(1-)
Bromite
BrO2(1-)
Hypobromite
BrO(1-)
Periodate
IO4(-1)
Iodate
IO3(1-)
Iodite
IO2(1-)
Hypoiodite
IO(1-)
Hyposulfite
SO2(2-)
Sulfite
SO3(2-)
Sulfate
SO4(2-)
Carbonate
CO3(2-)
Oxalate
C2O4(2-)
Chromate
CrO4(2-)
Dichromate
Cr2O7(2-)
Peroxide
O2(-2)
Hypophosphite
PO2(3-)
Phosphite
PO3(3-)
Phosphate
PO4(3-)
Arsenite
AsO3(3-)
Arsenate
AsO4(3-)
Silicate
SiO4(4-)
Mono-
1
Di-
2
Tri-
3
Tetra-
4 (Think of a tetris square having 4 sides)
Penta-
5 (Think of a “PENTA”gon)
Hexa-
6 (Think of a “HEXA”gon)
Hepta-
7
Octa-
8 (Think of an “OCTA”gon)
Nona-
9
Deca-
10
Hydrogen
H2
Nitrogen
N2
Oxygen
O2
Sulfur
S8
Phosphorus
P4
Fluorine
F2
Chlorine
Cl2
Bromine
Br2
Iodine
I2