Ions and Formula Units Worksheet
Explore the basics of ions, cations, anions, and how they combine to form neutral ionic compounds and formula units.
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Ions and Formula Units
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Read each question carefully and answer to the best of your ability. This worksheet will test your knowledge of ions and formula units.
1. An atom that gains electrons becomes a(n):
Cation
Anion
Neutral atom
Isotope
2. What is the overall charge of an ionic compound?
Positive
Negative
Neutral
Varies
3. A positively charged ion is called a(n) .
4. A negatively charged ion is called a(n) .
5. The smallest whole-number ratio of ions in an ionic compound is known as a(n) .
6. Explain how an atom becomes an ion.
7. What is the main difference between a cation and an anion?
Match the term on the left with its definition on the right.
8. Ion
a. A compound formed from ions
9. Cation
b. An atom or group of atoms with an electrical charge
10. Anion
c. A positively charged ion
11. Ionic Compound
d. A negatively charged ion
12. Ionic compounds are formed between two nonmetals.
True
False
13. The formula unit for sodium chloride is NaCl.
True
False