Atom Structure Class 9 | Complete Chapter in One Shot with NCERT | Alakh Pandey 🔬

Class Notes : https://drive.google.com/file/d/1JjGPS_PwJTGdsBnyfvNXRNy1gw91k_ee/view?usp=sharing

Handwritten Notes : https://drive.google.com/file/d/1-TBh7dS2TseoiX1kWHZXSRc9iZu54mBj/view?usp=sharing

Time Stamps

00:00 : Introduction
01:20 : Atom Is Indivisible
09:47 : Thomson's Model Of An Atom
12:53 : Thomson Proposed
16:55 : Rutherford Alpha Particle Scattering Experiment (Gold Foil Experiment)
29:38 : Rutherford's Nuclear Model Of An Atom
40:56 : Bohr's Model Of Atom
47:42 : Discovery Of Neutron & Updated Atomic Model
53:17 : Atomic Number (Z) = Element Ki Pehchan
59:57 : Distribution Of Electrons In Different Orbits/Shells
01:11:32 : Electronic Configuration
01:15:50 : Stable Electronic Configuration
01:20:07 : Valency
01:38:24 : Mass Number (A)
01:45:03 : Isotopes
01:52:21 : Fractional Atomic Mass
01:55:05 : Isobars


More Class 9th Lectures

Motion - https://youtu.be/EEwqHBmp7zU?si=wLxjKdiw8NrHW-yQ
Matter in Our Surroundings - https://youtu.be/d9tySXcfT-I?si=-TpZCibN5FAjTu9a
Force and Laws of Motion - https://youtu.be/uOz2jyshMO8?si=Uj8w1f6Ifso_asw-
The Fundamental Unit of Life - https://youtu.be/_zOwnsquS6E?si=d1lTjQxcz0tjx9qU
Is Matter Around Us Pure? - https://youtu.be/aSXeach0I4A?si=OSdyBZlMuN-nKmML
Gravitation - https://youtu.be/K_gbborBB_A?si=0sbqR3gVF1YPtS36
Tissues - https://youtu.be/EufLqNxFJfM?si=exXDd7cZeOnjgG3L
Atoms and Molecules - https://youtu.be/YjDLkvTAYCU?si=EBmsRMabK8F-YH0s