Stock Nomenclature

Unit 7

Chapter 7

Naming Ionic Compounds

There are a few different ways to name chemicals.

Stock Nomenclature is used when a metal or polyatomic cation

Is bonded to a nonmetal or polyatomic anion.

(Nomenclature means a method of naming something.)

Rules for Stock Nomenclature

Always name the cation first. If the charge of the cation is always the

same, Use the name directly from the periodic

table or polyatomic ion chart: Groups 1 & 2, Aluminum, Zinc, Silver and all Polyatomic ions.

Undecided Metals

If the cation can have more than one charge,

Use the name of the element from the periodic table

With a roman numeral in parenthesis to specify the charge of the cation.

Example: MnCl3 Mn+3 = Manganese(III) MnCl6 Mn+6 = Manganese(VI)

Roman Numeral Review

1) I

2) II

3) III

4) IV

5) V

6) VI

7) VII

8) VIII

9) IX

10)X

Stock Naming for Anions

Always name the anion last.

If the anion is a single element: Drop the final syllable(s) and Add the “-ide” suffix.

If the anion is a polyatomic ion Use the name of the polyatomic ion.