Ions to Memorize DFA

Group 1 (full name)

1+

Chromium (III, VI)

Cr^3+, Cr^6+

Group 2 (full name)

2+

Group 13 (full name)

3+

Group 14 (full name OR root+ide)

4+ or 4-

Group 15 (root+ide)

3-

Group 16 (root+ide)

2-

Group 17 (root+ide)

1-

Copper (I, II)

Cu+ and Cu^2+

Iron (II, III)

Fe^2+ and Fe^3+

Lead (II, IV)

Pb^2+ and Pb^4+

Manganese (II, IV, VII)

Mn^2+, Mn^4+, Mn^7+

Mercury (I, II)

Hg2^2+, Hg^2+

Silver

Ag+

Tin (II, IV)

Sn^2+ and Sn^4+

Zinc

Zn^2+

Ammonium

NH4+

Acetate

C2H3O2- (or CH3COO-)

Carbonate

CO3^-2

Hydrogen Carbonate (Bicarbonate)

HCO3^-

Perchlorate

ClO4^-

Chlorate

ClO3^-

Chlorite

ClO2^-

Hypochlorite

ClO^-

Chromate

CrO4^-2

Dichromate

Cr2O7^-2

Cyanide

CN-

Thiocyanate

SCN-

Hydride

H-

Hydroxide

OH-

Nitrate

NO3^-

Nitrite

NO2^-

Permanganate

MnO4^-

Manganate

MnO4^-2

Peroxide

O2^-2

Phosphate

PO4^-3

Hydrogen Phosphate

HPO4^-2

Dihydrogen Phosphate

H2PO4^-

Sulfate

SO4^-2

Hydrogen Sulfate (Bisulfate)

HSO4^-

Sulfite

SO3^-2

Hydrogen Sulfite (Bisulfite)

HSO3^-

-ate ions

(root)ic acids

-ite ions

(root)ous acids

Roman numeral

charge on ion

Oxalate

C2O4^-2

Thiosulfate

S2O3^-2

Iodate

IO3^-

Bromate

BrO3^-

-ide ions

hydro(root)ic acids