Class 9 Science Chapter 8: Journey Inside the Atom — Important Questions & Mock Tests
Practice Journey Inside the Atom topic-wise important questions, MCQs and 1, 2, 3 and 5 mark questions for CBSE revision.
60 Questions 28 Topics MCQs: 20 1 Mark: 10 2 Mark: 10 3 Mark: 10 5 Mark: 10
Topic-wise important and practice questions
Review question distribution across chapter topics for MCQs, 1 Mark questions, 2 Mark questions, 3 Mark questions, 5 Mark questions.
| Topic | MCQ | 1 Mark | 2 Mark | 3 Mark | 5 Mark | Total |
|---|---|---|---|---|---|---|
| Isotopes | 1 | 0 | 2 | 1 | 2 | 6 |
| Electronic Configuration | 1 | 0 | 1 | 1 | 2 | 5 |
| Atomic Number | 1 | 1 | 1 | 0 | 1 | 4 |
| Average Atomic Mass | 1 | 0 | 1 | 1 | 1 | 4 |
| Comparison of Atomic Models | 0 | 0 | 1 | 1 | 2 | 4 |
| Bohr's Atomic Model | 1 | 0 | 0 | 1 | 1 | 3 |
| Rutherford's Gold Foil Experiment | 1 | 0 | 1 | 1 | 0 | 3 |
| Thomson's Atomic Model | 2 | 1 | 0 | 0 | 0 | 3 |
| Valency | 1 | 1 | 0 | 1 | 0 | 3 |
| Atomic Number and Mass Number | 0 | 2 | 0 | 0 | 0 | 2 |
| Cathode Rays | 1 | 0 | 0 | 1 | 0 | 2 |
| Discovery of the Neutron | 1 | 0 | 0 | 1 | 0 | 2 |
| Mass Number | 1 | 1 | 0 | 0 | 0 | 2 |
| Neutral Atoms | 1 | 0 | 1 | 0 | 0 | 2 |
| Rutherford's Atomic Model | 1 | 0 | 1 | 0 | 0 | 2 |
| Ancient Atomic Ideas | 1 | 0 | 0 | 0 | 0 | 1 |
| Atomic Structure | 0 | 1 | 0 | 0 | 0 | 1 |
| Bohr-Bury Rules | 0 | 0 | 0 | 1 | 0 | 1 |
| Chemical Symbols | 0 | 0 | 1 | 0 | 0 | 1 |
| Dalton's Atomic Theory | 1 | 0 | 0 | 0 | 0 | 1 |
| Development of Atomic Theory | 0 | 0 | 0 | 0 | 1 | 1 |
| Electron Shell Capacity | 1 | 0 | 0 | 0 | 0 | 1 |
| Electron Shells | 1 | 0 | 0 | 0 | 0 | 1 |
| Limitations of Rutherford's Model | 1 | 0 | 0 | 0 | 0 | 1 |
| Number of Neutrons | 1 | 0 | 0 | 0 | 0 | 1 |
| Octet Rule | 0 | 1 | 0 | 0 | 0 | 1 |
| Subatomic Particles | 0 | 1 | 0 | 0 | 0 | 1 |
| Valence Electrons | 0 | 1 | 0 | 0 | 0 | 1 |