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Chapter 1: Matter in Our Surroundings
9 questions
Chapter 2: Is Matter Around Us Pure?
13 questions
Chapter 3: Atoms and Molecules
16 questions
Chapter 4: Structure of the Atom
19 questions
Chapter 5: The Fundamental Unit of Life
10 questions
Chapter 6: Tissues
15 questions
Chapter 7: Diversity in Living Organisms
6 questions
Chapter 8: Motion
18 questions
Chapter 9: Force and Laws of Motion
29 questions
Chapter 10: Work and Energy
23 questions
Chapter 11: Sound
25 questions
Chapter 12: Why do We Fall Ill?
6 questions
Chapter 13: Natural Resourses
6 questions
Chapter 14: Improvement in Food Resources
Chapter 15: Gravitation
29 questions
Solving time: 5 mins
Compare all the proposed models of an atom given in this chapter.
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Text solution
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| Thompson Model | Rutherford Model | Bohr Model |
| In this model, an atom consists of a positively charged sphere and the electrons embedded in it. The number of electrons is equal to the number of protons so the atom is electrically neutral. | In this model, there is a positively charged centre in an atom called the nucleus. Nearly all the mass of an atom resides in the nucleus. The electrons revolve around the nucleus in circular paths. The size of the nucleus is very small as compared to the size of the atom. | In this model, only certain special orbits known as the discrete orbit of electrons, are allowed inside the atom. While revolving the electrons do not radiate energy. These orbits are called energy levels or shells. |
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| Question Text | Compare all the proposed models of an atom given in this chapter. |
| Updated On | Feb 7, 2024 |
| Topic | Structure of the Atom |
| Subject | Science |
| Class | Class 9 |
| Answer Type | Text solution:1 Video solution: 7 |
| Upvotes | 582 |
| Avg. Video Duration | 12 min |
