Скачать или смотреть Thomson’s Model of an Atom 🔥 | Watermelon Model | Plum Pudding Model | Class 9 Chemistry

Thomson’s Model of an Atom 🔥 | Watermelon Model | Plum Pudding Model | Class 9 Chemistry ( Animation ) ⚡

Students often get confused between Thomson’s and Rutherford’s model, so this short makes it super easy.

Thomson’s Atomic Model (1904) – also known as the Plum Pudding Model or Watermelon Model – was the first scientific model of the internal structure of an atom.

📌 In this short, you will learn:

✅ Thomson’s idea
✅ Why electrons were embedded ?
✅ Why the model failed ?
✅ Limitations/Drawbacks of Thomson's Atomic Model
✅ How Rutherford replaced it with the nuclear model

👉Watch till the end for clarity!

👉Useful for Class 9, 10, 11, 12, NEET, JEE and all board exams.

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📖 Notes (for quick revision) :-

⭐ Postulates of Thomson’s Model :

1. The atom is a uniform sphere of positive charge.

2. Electrons are embedded inside this sphere like “seeds in a watermelon”.

3. The atom is electrically neutral because positive and negative charges balance each other.

⭐ Limitations of Thomson's Model :

1. Failed to explain Rutherford’s alpha-scattering experiment.

2. Did not propose the nucleus.

3. Could not explain stability of the atom.

4. Failed to explain atomic spectra (like hydrogen spectrum).


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