Naming Ionic Compounds
A worksheet for 7th-grade science students to practice naming ionic compounds, covering basic rules and common examples.
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Naming Ionic Compounds
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Read each question carefully and provide the best answer. Remember the rules for naming ionic compounds!
Ionic compounds are formed when a metal atom transfers one or more electrons to a nonmetal atom, creating oppositely charged ions that attract each other. The image below illustrates the formation of an ionic bond.

1. What type of bond is formed when electrons are transferred between atoms?
Covalent bond
Ionic bond
Metallic bond
Hydrogen bond
2. In the name 'sodium chloride', what is the name of the metal ion?
Chlorine
Chloride
Sodium
Sodide
3. The first part of an ionic compound name is the , which keeps its original name.
4. The second part of an ionic compound name is the , which changes its ending to -ide.
5. When naming ionic compounds, the is always written first.
6. Name the following ionic compounds:
a) NaCl
b) MgO
c) CaCl₂
7. The compound KCl is named potassium chlorine.
True
False
8. In an ionic compound, the nonmetal's name always ends in -ide.
True
False
Match each ionic compound on the left with its correct name on the right.
9. LiF
a. Magnesium oxide
10. K₂S
b. Lithium fluoride
11. AlN
c. Aluminum nitride
12. FeO
d. Potassium sulfide