Humboldt State University ® Department of Chemistry

Chem 109 Supplemental Study Modules

Nomenclature: Tables of Common Ions

Table of Negative Ions

Minus One
Minus Two
Minus Three

Symbol
Name
Symbol
Name
Symbol
Name

F^-

Cl^-

Br^-

I^-

OH^-

NO₂^-

NO₃^-

C₂H₃O₂^-

ClO^-

ClO₂^-

ClO₃^-

ClO₄^-

HCO₃^-

HSO₃^-

HSO₄^-

MnO₄^-

CN^-

flouride

chloride

bromide

iodide

hydroxide

nitrite

nitrate

acetate

hypochlorite

chlorite

chlorate

perchlorate

hydrogen carbonate (bicarbonate)

hydrogen sulfite

hydrogen sulfate

permanganate

cyanide

O^2-

O₂^2-

S^2-

SO₃^2-

SO₄^2-

CO₃^2-

C₂O₄^2-

CrO₄^2-

Cr₂O₇^2-

oxide

peroxide

sulfide

sulfite

sulfate

carbonate

oxalate

chromate

dichromate

PO₄^3-

AsO₃^3-

AsO₄^3-

phosphate

arsenite

arsenate

Table of Positive Ions

Plus One
Plus Two
Plus Three

Symbol
Name
Symbol
Name
Symbol
Name

H⁺

Na⁺

K⁺

Ag⁺

NH₄⁺

hydrogen

sodium

potassium

silver

ammonium

Mg²⁺

Ca²⁺

Sr²⁺

Ba²⁺

Zn²⁺

Cd²⁺

Ni²⁺

magnesium

calcium

strontium

barium

zinc

cadmium

nickel

Al³⁺

aluminum

Table of Positive Ions with Multiple Valence

Plus One or Two
Plus Two or Three
Plus Three or Four

Symbol
Name
Symbol
Name
Symbol
Name

Cu⁺

Cu²⁺

Hg₂²⁺

Hg²⁺

copper(I) or cuprous

copper(II) or cupric

mercury(I) or mercurous

mercury(II) or mercuric

Fe²⁺

Fe³⁺

iron(II) or ferrous

iron(III) or ferric

Sn²⁺

Sn⁴⁺

Pb²⁺

Pb⁴⁺

tin(II) or stannous

tin(IV) or stannic

lead(II) or plumbous

lead(IV) or plumbic

© R A Paselk

Last modified 425 January 2011