9th Class Chemistry Lecture Unit:2 (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:12

Structure of Atoms,

Introduction,

2.1 THEORIES AND EXPERIMENTS RELATED TO STRUCTURE OF

ATOM,

Cathode rays and Discovery of Electron,

Discovery of Proton,

Discovery of Neutron,

2.1.1 Rutherford's Atomic Model,

Defects in Rutherford's Model,

2.1.2 Bohr's Atomic Theory,

2.2 ELECTRONIC CONFIGURATION,

2.2 ELECTRONIC CONFIGURATION,

2.2.2 The electronic configuration of first 18 elements,

2.3 ISOTOPES,

APPLICATION OF ISOTOPES,

TESTING PREVAILING THEORIES BRINGS ABOUT CHANGE IN

THEM,

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