Atomic Structure

Atomic Structure

1. Elements & Compounds

   • Compounds
     • Chemically Combined
   • Elements
     • Not chemically Combined
       • E.G - Li

2. Atom - Smallest part of an element to exist

3. Key features of a Chemical Reactions

   • Compounds are broken up or formed
   • At least one new substance is formed
   • Measurable energy change
   • No atoms created or destroyed

4. Types of chemical equations

   • Symbol
   • Word

5. Reactants VS Products

   • Reactants - Left hand side, Combine to make the product
   • Products - Right hand side, combined by the reactants

6. Mixtures - Two or more elements/compounds not chemically combined

   • Seperation Techniques
     • Filtration
     • Fractional Distillation
     • Simple Distillation
     • Chromotography
     • Crystallisation

7. Model of the atom

   • Plum Pudding
     • J.J Thomson
   • Nuclear Model
     • Rutherford
   • Modern Model
     • Bohr

8. Atom Size

9. Sub Atomic Particles

   • Protons
   • Neutrons
     • Same = 1
   • Electrons
     • 0.0005

10. Atomic & Mass number

    • Mass number = Top
      • Relative Atomic Number
    • Atomic Number = Bottom
      • Number of protons

11. Isotopes

    • Same number of protons (Atomic Number), Different number of neutrons

12. Relative Atomic mass

13. Electron Shells

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