Topper’s Notes – Class 9
Chemistry : Chapter 3 (ATOMA & MOLECULES)
Topics Included : Definition and Symbols Of Atoms , Atomic Mass , Ion , Valency , Molecule , Compounds , Rules of Writing A Formulae , Molecular Mass , Formula Atomic Mass , Mole Concept , Dalton’s Atomic Theory .
Laws of Chemical Combination – 1) Law of Conservation of Mass 2) Law of Constant Proportions.
CLASS 9 – CHEMISTRY : Chapter 3 (Atoms & Molecules) Handwritten Notes PDF
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