Ionization energy and electron affinity - Lecture 4 - Chapter 8 - chemistry class 9 in Urdu medium

Assalamualaikum in this lecture 4 of chapter 8 of Chemistry class 9 in Urdu medium of new book we shall study ionization energy and electron affinity. So in Lecture 4 of chapter 8 of chemistry class 9 in urdu we shall study these topics in detail:-

Ionization energy
trend of ionization energy periodic table
first and second ionization energy
Electron affinity
trend of election affinity in periodic table

Best of luck for lecture 4 of chemistry chapter 8 in urdu medium.