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  • Subjects
  • Chemistry CBSE Live product
  • Class 9 (2026-27)
  • Journey Inside the Atom

History of Atomic Theory

Theory

1. History of Atomic Theory

Practice Questions

1. Early atomic theories

Difficulty: easy

2
2. Discovery of electron

Difficulty: medium

2
3. Cathode and canal rays

Difficulty: easy

1
4. Thomson's model of atom

Difficulty: medium

2
5. TBQ - Atomic neutrality

Difficulty: medium

2
6. TBQ - Comparison of Thomson model of atom

Difficulty: hard

2
7. Rutherford's experiment

Difficulty: easy

2
8. Rutherford’s Gold Foil Experiment and Failure of Thomson’s Model

Difficulty: hard

3
9. Atomic Structure and Discoveries

Difficulty: easy

3

Teacher manual

1. Methodical recommendation
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