CBSE Class 9
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Science
Matter - Nature & Behaviour
Lesson 3 of 6 • 1 upvotes • 9:18mins
Lesson 3 What is an Atom ,? Symbols of elements ,how do Atom exist, Atomic mass
6 lessons • 54m
Overview (in Hindi)
1:53mins
Discovery of Atom (in Hindi)
11:06mins
What is an Atom (in Hindi)
9:18mins
What is a Molecule (in Hindi)
6:29mins
Writing Chemical Formulae (in Hindi)
11:53mins
Lesson 6, molecular mass and mole concept
13:39mins