9th Class Chemistry Lecture Unit:3 (PTB Syllabus)

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9th and 10th class English, Biology, Physics, Chemistry, and Computer Science Lectures for Punjab Boards. Class 9th 10th , IX/SSC-1/Matric. These Lectures are per the Latest Syllabus/Course Prescribed by the Boards of Intermediate and Secondary Education (BISEs) of Punjab Province and prescribed by the Department of Education, Punjab Government, Lahore.

In this video,

I covered these things,

Lecture

Unit:3

Periodic Table and

Periodicity of Properties,

Introduction,

3.1 PERIODIC TABLE,

Long form of Periodic Table,

Salient Features of Long Form of Periodic Table:,

3.1.1 Periods,

3.1.2 Groups,

3.2 PERIODICITY OF PROPERTIES,

3.2.2 Shielding Effect,

3.2.3 Ionization Energy,

3.2.4 Electron Affinity,

3.2.5 Electronegativity,

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