CBSE Class 9
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Science
Matter - Nature & Behaviour
Lesson 7 of 7 • 0 upvotes • 9:17mins
In this lesson atomic number mass numbers isotopes isobars has been explained and also how to determine the valency is explained.
7 lessons • 1h 2m
Atoms Molecules and Atomicity (in Hindi)
9:26mins
Atoms and Molecules (in Hindi)
9:10mins
Molecular Mass (in Hindi)
9:03mins
Mole Concept (in Hindi)
8:58mins
Numericals (in Hindi)
7:51mins
Structure of the atom
9:00mins
Valency
9:17mins