Journey Inside The Atom in One Video | New NCERT Class 9 Chemistry 2026-27 | Nikita Ma'am

Class 9 VIP: https://unacademy.com/goal/-/TPSBK/su... ⚛️ Journey Inside the Atom – Complete Class 9 Science Chapter 4 explained in one detailed session according to the New NCERT 2026 syllabus.In this One Shot session, you'll learn every concept from the chapter with easy explanations, diagrams, tricks, and important exam questions. -------------------------- ➡️Class 9, 10, 11, 12 subscription: https://unacademy.com/goal/cbse-class... ⏬Download Session PDF: https://unacademy.com/content/cbse/cl... 📌Telegram Channel: https://t.me/knightsclass9unacademy -------------------------- Timestamp 00:00 Introduction 00:35 Roots of Atomic Theory 02:20 Dalton's Atomic Theory 04:50 Discovery of Electron (J.J. Thomson) 07:10 Discovery of Proton 08:25 Thomson's Plum Pudding Model 10:55 Rutherford Gold Foil Experiment 17:05 Limitations of Rutherford Model 19:20 Bohr's Atomic Model 24:00 Discovery of Neutron 24:45 Symbols of Elements 29:15 Atomic Number 30:00 Electronic Configuration 31:45 Valency 36:20 Mass Number 37:40 Isotopes 39:10 Isobars 39:55 Average Atomic Mass 41:45 Complete Chapter Revision 42:20 Outro #class9science #journeyinsidetheatom #ncert2026 #oneshot #unacademy #scienceclass9 #atoms #chemistry #foundation