Ions and Formula Units Worksheet
Explore the formation of ions, ionic bonds, and the naming and writing of chemical formulas for ionic compounds at a Grade 10 level.
Includes
Standards
Topics
Ions and Formula Units
Name:
Date:
Score:
Read each question carefully and provide your best answer. Show all work where applicable.
1. Which of the following elements is most likely to form a cation?
Chlorine (Cl)
Oxygen (O)
Sodium (Na)
Neon (Ne)
2. An ionic bond is formed between:
Two nonmetals
Two metals
A metal and a nonmetal
Two noble gases
3. What is the correct formula unit for the ionic compound formed between Magnesium (Mg) and Oxygen (O)?
MgO2
Mg2O
MgO
Mg2O2
4. Cations are negatively charged ions.
True
False
5. An atom that gains electrons becomes a negatively charged ion called an .
6. The smallest whole-number ratio of ions in an ionic compound is referred to as a .
7. Explain how an ionic bond is formed between a metal and a nonmetal.
8. Write the chemical formula for the ionic compound formed from Calcium (Ca) and Chlorine (Cl).
9. Name the following ionic compound: K2S.
Match each term on the left with its correct definition on the right.
10. Cation
a. A negatively charged ion
11. Anion
b. A positively charged ion
12. Ionic Compound
c. A compound formed from the electrostatic attraction between oppositely charged ions
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