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JJ Thomson Model - Atoms & Molecules, Science Video Lecture - Class 9
FAQs on JJ Thomson Model - Atoms & Molecules, Science Video Lecture - Class 9
| 1. What is the JJ Thomson model of atoms and molecules? |  |
Ans. The JJ Thomson model, also known as the "plum pudding" model, suggests that an atom is made up of a positively charged "pudding" with negatively charged electrons embedded within it, resembling plums in a pudding.
| 2. How did JJ Thomson contribute to the understanding of atoms and molecules? | |
Ans. JJ Thomson's experiments with cathode rays led to the discovery of electrons and the development of the first atomic model. His model proposed that atoms are not indivisible but have subatomic particles, specifically electrons.
| 3. What are the limitations of the JJ Thomson model? | |
Ans. The JJ Thomson model failed to explain the distribution of positive charge within the atom and the arrangement of electrons. It also did not account for the existence of a nucleus or the presence of protons and neutrons.
| 4. How did the JJ Thomson model pave the way for further atomic theories? | |
Ans. The JJ Thomson model laid the foundation for further research and theories on atomic structure. It led to the development of Rutherford's nuclear model, which explained the existence of a dense, positively charged nucleus and the distribution of electrons in the atom.
| 5. What is the significance of the plum pudding analogy in the JJ Thomson model? | |
Ans. The plum pudding analogy used in the JJ Thomson model helps visualize the distribution of positive and negative charges within an atom. Just as plums are scattered within a pudding, electrons are scattered within a positively charged "pudding" in his model.
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Dec 01, 2024 Last updated |
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