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Chapter 1: Matter in Our Surroundings
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CBSE Class 9
Unit 1 Matter - Its Nature & Behaviour
Chapter 1: Matter in Our Surroundings Notes
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Mayank classes
1. Matter and its Classification
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Mayank classes Science Book
Publication
Mayank classes
Course
CBSE Class 9
Subject
Science
rew
Related Chapter Name
Chapter 2: Is Matter Around us Pure?
Elements, compounds and mixtures.
Heterogenous and homogenous mixtures
colloids and suspensions
1. Pure Substance
2. Impure Substance
3. Separation of Mixtures
4. Physical And Chemical Changes
5. What Are The Types Of Pure Substances ?
PHYSICAL & CHEMICAL CHANGES
PURE SUBSTANCES AND ITS TYPES
Chapter 3: Atoms & Molecules
Atoms and molecules,
Law of constant proportions
Atomic and molecular masses
Mole concept : Relationship of mole to mass of the particles and numbers
INTRODUCTION
1. Dalton's atomic Theory
2. IUPAC and atomic Symbols
3. Compound
4. Chemical Formula
5. Molecular Mass And Mole Concept
CHEMICAL FORMULAE
MOLECULAR MASS
IONS AND MOLE CONCEPT
Chapter 4:The Structure of an Atom
Electrons, protons and neutrons,
valency
chemical formula of common compounds
Isotopes and Isobars
INTRODUCTION
1. Introduction
2. Discovery of Electrons and Protons
3. Discovery of Neutrons
4. Some Important Defintion
5. Atomic Number And Mass Number
6. Isotopes
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