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  • Dalton’s Atomic Theory

  • Thomson's Cathode Ray Experiment

  • Thomson's Plum Pudding Model

  • Rutherford’s Gold Foil Experiment

  • Moseley Discovering The Atomic Number

  • Bohr’s Nuclear Model

  • Chadwick Discovering The Neutron

  • History of the Atom Timeline

  • Atomic Structure

  • Why Atoms Are Neutral

  • Mass & Atomic Number

  • Why Atoms Form Bonds

  • Isotopes

  • Relative Atomic Mass: Chlorine

  • Relative Atomic Mass: Copper

  • How Mendeleev Developed The Periodic Table

  • Chemical Symbols & The Periodic Table

  • Atoms, Elements & Compounds

  • How To Use State Symbols

  • How To Interpret Chemical Formula

  • How To Interpret Chemical Formula With Brackets

  • Electronic Configuration Diagrams

  • What Is An Ion

  • How Cations Form

  • How Anions Form

  • What Are Ionic Bonds

  • Writing Formulae of Ionic Compounds

  • Writing Formulae Of Polyatomic Ions

  • Ionic Bonding: Lithium Fluoride

  • Ionic Bonding: Calcium Chloride

  • Ionic Bonding: Magnesium Oxide

  • Giant Ionic Lattice Structure

  • Properties of Ionic Compounds: Melting Point

  • Effect Of Ionic Charge On Melting Point

  • Properties of Ionic Compounds: Electricity

  • Ionic Compounds Conducting Electricity

  • What Are Covalent Bonds

  • Why Are Covalent Bonds Strong

  • Covalent Molecules 1

  • Covalent Molecules 2

  • Covalent Molecules 3

  • Covalent Molecules 4

  • What Is a Simple Molecular Substance

  • Intermolecular forces Vs Covalent Bond

  • Properties of Molecules: Melting & Boiling Point

  • Properties of Molecules: Electricity

  • How Melting & Boiling Point Increases With Molecule Size

  • Fullerenes

  • Diamond & Silicon Dioxide

  • Graphite

  • Summary: Diamond Vs Graphite

  • Graphene

  • What Are Metallic Bonds

  • Properties Of Metals: Electricity

  • Electrical Conductivity Of Metals

  • Properties Of Metals: Melting Point

  • What Is Relative Atomic Mass

  • What Is Relative Formula Mass

  • How To Calculate The Empirical Formula Using Masses & Relative Atomic Mass

  • How To Calculate The Molecular Formula Using Empirical Formula & Mr

  • An Introduction To Balancing Equations

  • Balancing Equations 1

  • Balancing Equations 2

  • What Can Balanced Symbol Equations Tell You About Chemical Reactions

  • What Is The Mole & Avogadro's Constant (H)

  • Calculating The Number Of Atoms Or Molecules Using Avogadro's Constant (H)

  • How To Calculate Moles & Masses Of Elements (H)

  • How To Calculate Moles & Masses Of Compounds (H)

  • How To Calculate The Mass Using The Balanced Equation

  • What Is Concentration

  • How To Calculate The Concentration

  • How To Calculate The Mass Of Reacting Substances (H)

  • How To Balance An Equation Using Masses Of Reacting Substances (H)

  • How To Determine The Limiting Reactant

  • Structure of the Atom (12)

  • The Periodic Table (11)

  • Chemical Equations (12)

  • Ionic Bonding (12)

  • Covalent Bonding (18)

  • Metallic Bonding (9)

  • Calculations (14)

  1. Topic 1 : Key Concepts in Chemistry
  2. C1: History of the atom
  3. Chadwick Discovering The Neutron
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