Naming Ionic Compounds 3.9

Question 1

Metals that can form only one ion (Groups 1A and 2A, some of the transition metals, Al)

Answer 1

The name of the ion is the same as the name of the element.

Ex: Na^+ sodium
Ca^2+ calcium
Zn^2+ zinc

Question 2

Metals that can form more than one ion (most transition metals)

Answer 2

Write the name of the element, and then write the charge as a Roman numeral.

Ex: Fe^2+ iron (2)
Cr^3+ chromium (3)
Cu copper (1)

Question 3

Nonmetals

Answer 3

Change the ending of the element name to ide.

Ex: Cl^- chloride
O^2- oxide
S^2- sulfide