Naming Binary Ionic Compounds

Rules for naming simple ionic compounds.

1.       Name the metal by its elemental name.

2.       Name the nonmetal by its elemental name and an -ide ending.

3.       Name metals that can have different oxidation states using roman numerals to indicate positive charge.

             Example Fe2+ is Iron(II)  

            (See table “Charges of some Common Monatomic ions”  to determine which metals can have more than one positive charge.)

4.       Name polyatomic ions by their names.

 

Examples

Cation

Anion

Formula

Name

Al3+

Cl-

AlCl3

Aluminum chloride

Ca2+

OH-

Ca(OH)2

Calcium hydroxide

Fe3+

O2-

Fe2O3

Iron(III) oxide

 

 

Please enjoy the presentation from your instructor at http://web.fccj.org/~smilczan/psc/naming.html

Please enjoy the presentation from your instructor at http://web.fccj.org/~smilczan/psc/formula.html

Please check your understanding by playing a quick naming game at the following site:

http://www.quia.com/jg/65800.html