Atoms and Molecules - One Shot Revision (Part - 1) | Class 9 Chemistry Chapter 3 (2022-23)

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✅ In this video,

✔️ Class: 9th
✔️ Subject: Science (Chemistry)
✔️ Chapter: Atoms and Molecules (Chapter 3)
✔️ Topic Name: Atoms and Molecules One Shot Revision (Part 1)
✔️ Topics Covered in This Video by Vibhuti ma'am: This video covers Class 9 Chemistry Chapter 3 Atoms and Molecules - One Shot Full Chapter Revision
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00:00 Introductions: Atoms and Molecules One Shot Revision (Part 1)
00:50 History of atoms and molecules
17:16 Laws of chemical combination
20:22 Laws of Conservation of mass
21:56 Laws of Constant Proportion
26:07 Numericals
31:23 Dalton's Atomic theory
32:33 postulates of Dalton's Theory
42:42 Limitations/Drawbacks of Dalton's Atomic theory
59:34 What is an atom?
01:01:09 How big are the atoms? can we see them?
01:06:35 symbols used to represent Atoms of Different Elements
01:13:12 modern symbols of Elements
01:19:44 Atomic mass
01:44:03 What is a molecule?
01:53:57 molecules of an Element
01:55:49 molecules of a Compound 01:57:26 molecular Mass
01:57:47 Calculation of molecular Mass
02:01:20 Website Overview
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Ma'am humne elements ke atoms ke masses ko C-12 isotope ke mass ke saath divide hi kyun kiya, multiply kyun nahi?

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