Class 9 Chemistry | New Book Chapter 2 Lecture 5 | Discovery of the Nucleus 🧪 | Punjab Board скачать в хорошем качестве

Class 9 Chemistry | New Book Chapter 2 Lecture 5 | Discovery of the Nucleus 🧪 | Punjab Board

Complete Lecture Series: Class 9 Chemistry | Complete New Book (Chapters 1-13) | Punjab Board 🔥📘    • Class 9 Chemistry | Complete New Book (Cha...   🚀 Welcome to Chapter 2 of Class 9 Chemistry – Discovery of the Nucleus! In this lecture, we explore the groundbreaking experiments that led to the discovery of the atomic nucleus. Understanding the nucleus is fundamental to comprehending atomic structure and the behavior of matter. This lecture aligns with the curriculum of the Board of Intermediate and Secondary Education (Punjab). 📘 Topics Covered in This Lecture: 🔹 Background of Atomic Models:     • Overview of early atomic models prior to the discovery of the nucleus.     • Limitations of the "plum pudding" model proposed by J.J. Thomson. 🔹 Rutherford’s Gold Foil Experiment (1909):     • Setup and methodology of the experiment conducted by Ernest Rutherford and his colleagues.     • Observations that led to questioning existing atomic models. 🔹 Discovery of the Nucleus:     • Analysis of how the deflection of alpha particles indicated a dense, positively charged center within the atom.     • Introduction of the nuclear model of the atom, proposing that most of the atom's mass is concentrated in a central nucleus. 🔹 Impact on Atomic Theory:     • How Rutherford's findings revolutionized the understanding of atomic structure.     • Subsequent developments in nuclear physics stemming from this discovery. This lecture is specially designed for Class 9 students under the Punjab Board system, including: Board of Intermediate and Secondary Education, Lahore Board of Intermediate and Secondary Education, Faisalabad Board of Intermediate and Secondary Education, Multan Board of Intermediate and Secondary Education, Rawalpindi Board of Intermediate and Secondary Education, Sargodha Board of Intermediate and Secondary Education, Dera Ghazi Khan Board of Intermediate and Secondary Education, Bahawalpur Board of Intermediate and Secondary Education, Gujranwala Board of Intermediate and Secondary Education, Sahiwal ✅ Watch till the end for exam-focused explanations and key insights that will help you excel in your Board exams! 📌 Stay Connected: 👉 Like, share, and subscribe for more exam-focused Chemistry lectures and complete Punjab Board syllabus coverage! #Class9Chemistry #DiscoveryOfNucleus #RutherfordExperiment #GoldFoilExperiment #AtomicStructure #PunjabBoard #NewBook2025 #ChemistryLecture #StudyWithMe #LearnChemistry #LahoreBoard #FaisalabadBoard #MultanBoard #RawalpindiBoard #SargodhaBoard #GujranwalaBoard #SahiwalBoard #ExamPreparation #EducationalContent #ScienceForPakistan