An atom is the smallest unit of an element that retains its chemical properties. It consists of a nucleus containing protons and neutrons, surrounded by electrons. An ion is an atom or group of atoms that has gained or lost electrons and carries an electric charge. Learning about atoms and ions helps us understand the structure of matter and how chemical reactions occur. The Atoms and Ions Quiz for Grade 7 checks the amount of knowledge you have regarding the formation of compounds and the role of ions in conducting electricity. Try these 10 questions to evaluate your understanding of atoms and ions.
| Topic | Quiz |
|---|---|
| Acids, Bases, and Salts | Quiz on Acids, Bases, and Salts |
| Adaptations to Environmental Conditions | Quiz on Adaptations to Environmental Conditions |
| Atoms and Ions | Quiz on Atoms and Ions |
| Physical and Chemical Transformations | Quiz on Physical and Chemical Transformations |
| Electricity and its Effects | Quiz on Electricity and its Effects |
| Understanding Air and Atmosphere | Quiz on Understanding Air and Atmosphere |
| Thermal Energy and Heat Transfer | Quiz on Thermal Energy and Heat Transfer |
| Light and Sound | Quiz on Light and Sound |
| Dynamics of Mass and Motion | Quiz on Dynamics of Mass and Motion |
| Nutritional Processes in Living Organisms | Quiz on Nutritional Processes in Living Organisms |
| Plant Reproduction | Quiz on Plant Reproduction |
| Respiration and Gas Exchange | Quiz on Respiration and Gas Exchange |
