Atomic Structure

Chemistry, SSC-Punjab Class 9. This chapter is split into 28 topics and has 647 practice questions. The topics covered are listed below, followed by 10 free sample questions from the chapter.

Topics in this chapter

1. Discovery of Nucleus: Rutherford's Experiment 24 questions
2. Modern Approach and Electron Capacity 2n squared 26 questions
3. Early Ideas: Democritus and Dalton 21 questions
4. Charge and Mass of Subatomic Particles (Table) 24 questions
5. Applications of Radioactive Isotopes 25 questions
6. Shells and Sub-shells 22 questions
7. Isotopes and Their Masses 26 questions
8. Short Answer Question Themes (Atomic Structure) 22 questions
9. Radioactive Isotopes and Radioactive Decay 24 questions
10. Discovery of Neutron and Fundamental Particles 21 questions
11. Discovery of Electrons: Cathode Rays and Thomson 23 questions
12. Symbols, Atomic Number and Mass Number Practice 26 questions
13. Key Points Review (Atomic Structure) 22 questions
14. Bohr's Atomic Model 24 questions
15. Relative Atomic Mass from Isotopic Abundance 20 questions
16. Calculating Protons, Neutrons and Electrons 27 questions
17. Introduction: Why Elements Differ 22 questions
18. Student Learning Outcomes: Atomic Structure 21 questions
19. Constructed, Descriptive and Investigative Question Themes (Atomic Structure) 21 questions
20. Relative Atomic Mass Numericals (Exercises) 23 questions
21. Discharge Tube Experiments 23 questions
22. Ionization of Atoms by a Radioactive Source 20 questions
23. Atomic Number and Mass Number 24 questions
24. Worked Examples: Krypton and Chlorine 23 questions
25. Discovery of Proton: Goldstein and Rutherford 22 questions
26. Electronic Distribution in Shells (2n squared Applications) 24 questions
27. Relative Atomic Mass and the Atomic Mass Unit 24 questions
28. End-of-Chapter MCQs (Atomic Structure) 23 questions