Stage 2 Chemistry
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    • Weekly Assignments
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  • Elemental and Environmental Chemistry
    • The Periodic Table
    • Small Molecules
    • Environmental Chemistry
  • Using and Controlling Reactions
    • Measuring Energy Changes
    • Reaction Rates
    • Equilibrium
    • REDOX and Electrochemistry
  • Issue Investigation
  • Organic and Biological Chemistry
    • Systematic Nomenclature and Physical Properties
    • Functional Groups
  • Analytical Techniques
    • Volumetric Analysis
    • Chromatography
    • AAS
  • Materials Chemistry
    • Cleaning Agents
    • Polymers
    • Silicates
Before we delve into Small Molecules it is probably worth revising chemical bonds.....................................

small molecules

What are we referring to when we say 'small molecules'?

Generally:
 - non-metal atoms covalently bonded
- 10 or less atoms

They have low melting and boiling points and are poor conductors of electricity.

A few thing you need to understand in relation to small molecules
- Primary & Secondary bonds
- Polar Bonds
- Molecular Shapes
- Polar Molecules


Reading Essentials Workbook pg 15 - 36 including Q1.8 - Q1.12. Discovering Chemistry ch 4 has relevant further reading.

Lewis Diagrams
Follow the link on the right to open a document which covers the fundamentals of Lewis Diagrams - important revision, if you are not confident with these ideas.
Lewis Diagrams
The videos below will summarise and expand on the ideas covered in your reading.
Khan Academy: Secondary Interactions
Periodic Table Assignment: Part B - due Monday week 4
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