Chemistry Class 9 Unit 4 L-2 | Shielding Effect | Ionization Energy | Electron Affinity | FBISE NBF

Описание: Welcome to Lecture 2 of Physics 9th Class - NBF | Chapter 4 : Periodic Table And Periodicity of Properties (FBISE New Book) on Concept & Exam!

📚 Topics Covered in This Lecture:
• Shielding Effect
• Atomic Size (Atomic Radius)
• Ionization Energy
• Electron Affinity
• Electronegativity
• Periodic Trends Across Periods and Groups
Watch till the end for strong concept clarity and exam-focused explanation.
In this lecture of Class 9 Chemistry, we explain important periodic trends in a clear and conceptual way. This video covers Shielding Effect, Atomic Size, Ionization Energy, Electron Affinity and Electronegativity in detail.
You will learn how these properties change across a period and down a group, and why these trends occur according to electronic configuration and effective nuclear charge. Special focus is given to the concept of shielding effect and its impact on atomic radius and ionization energy.

This lecture is specially designed for 9th Class FBISE students who want strong concepts for board exams, MCQs, short questions, and long questions preparation.

This playlist covers all key topics of Chapter 4 with clear explanations, important formulas, solved numericals, and step-by-step problem-solving techniques. Perfect for students of 9th Class (FBISE) preparing for Board Exams, Entry Tests, or O/A-Level equivalence.

Subscribe to Concept & Exam for chapter-wise tutorials, examples, and exam strategies!

“Special acknowledgment to my respected teacher Dr. Shezray Anum for inspiring my understanding of Chemistry concepts.”

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