Anions Chemistry Worksheet
Grade 10 Chemistry worksheet covering the definition, formation, properties, and common examples of anions.
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Anions Chemistry Worksheet
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Read each question carefully and provide the best answer based on your knowledge of anions.
1. What is an anion?
An atom that has lost electrons, resulting in a positive charge.
An atom that has gained electrons, resulting in a negative charge.
A neutral atom with an equal number of protons and electrons.
A molecule composed of two or more atoms.
2. Which of the following elements is most likely to form an anion?
Sodium (Na)
Calcium (Ca)
Chlorine (Cl)
Aluminum (Al)
3. Anions are typically formed by elements.
4. When an atom gains electrons, its atomic radius generally .
5. The charge of an anion is always .
6. Anions are attracted to the anode in an electrolytic cell.
True
False
7. All nonmetals form anions.
True
False
8. Explain why elements in Group 17 (halogens) tend to form anions with a -1 charge.
9. Describe the difference in electron configuration between a neutral oxygen atom and an oxide ion (O²⁻).
Match the anion with its correct name.
10. S²⁻
a. Nitrate
11. NO₃⁻
b. Sulfate
12. SO₄²⁻
c. Sulfide
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