Structure of the Atom Class 9 Science | One Shot | Chapter 4 | Chemistry NCERT CBSE

"Timestamps:
0:00 Introduction
0:43 Atom
3:38 History of Atom
5:06 Dalton’s Atomic Theory (1808)
6:07 Dalton’s Atomic Theory : Limitations
6:54 Atomic Models
7:32 Thomson Model of Atom
8:56 Introducing α, β and γ-rays
10:07 Rutherford’s Experiment : Setup
12:39 Rutherford’s Experiment : Observation
15:12 Rutherford’s model of Atom
16:47 Rutherford’s model of Atom: Limitations
18:48 Rutherford’s model of Atom
19:32 Bohr’s Model of Atom
22:21 Bohr’s Model of Atom: Electron Orbits
23:13 Bohr’s Model of Atom : Limitation
24:08 Neutron
26:19 Electron distribution in Different Shells
26:40 Electron distribution in Different Shells
35:57 Valency
40:45 Determining Valency of an Element
46:06 Atomic Number & Mass Number
47:46 Isotopes
49:16 Isotopes: Application
49:57 Isobars
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The video discusses the structure of atoms and molecules, including electronic configuration, valency, and atomic number. It also explores the behavior and interaction of alpha particles within a gold item, as well as the electron distribution and behavior in atomic nuclei. The limitations and possibilities of building a home in a specific colony are also explained.
00:00
Understanding Molecules and Matter
05:53
Discussion on Organization of Items and Models in Quantum Mechanics
11:48
Analysis of Gold Item and Alpha Particle Interaction
17:44
Understanding the Energy Levels and Orbits of Electrons
23:38
Understanding Electron Distribution in Atomic Nuclei
29:40
Understanding Electron Configuration and Atomic Number
35:35
Understanding Electronic Configuration and Valency in Chemistry
41:33
Understanding Electron Configuration and Atomic Number
47:30
Understanding Atomic Numbers and their Significance

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