Atoms join together by exchanging or sharing electrons.  The differences in the way this happens links to the properties of the substances they produce.  Understanding the types of bonding and the structures they generate alows us to predict and explain the properties of the substances in the world arround us.

Specification links:

• Set 1 - All of 4.2 (starts on page 26)

• Set 2&3 - All of 4.2 (starts on page 56)

Task 1b:  Listen to the podcast for an overview of this topic:

Task 2b: Make notes that:

• Name the three states of matter (including a diagram for each)

• Describe the properties of the three states of matter

• Explain the limitations of the particle model

• Explain what happens during a change in state

• Complete and mark the exam question (slide 21-22)

Task 4b: Make notes that

• Describe what happens durring ionic bonding

• Draw diagrams to represent the bonding between sodium and chlorine.

• List the charges of complex ions

• Answer and mark the exam question (slide 15-16)

Task 5b: Make notes that

• Explain why ionic compounds are brittle

• Explain why ionic compounds have high melting and boiling points

• Explain why ionic compounds can conduct electricity when molten or dissolved but not when they are solid.

Task 10b: Make notes that

• Describe the structure of metals

• Explain the properties of metals, specifically:

  1. Why they have hig boiling and melting points

  2. How they conduct electricity

Task 14:  Complete the end of unit quiz to make sure you have understood this topic