Matter and materials: Identify and describe particles

Unit 3: Bonding

Emma Harrage

Unit outcomes

By the end of this unit you will be able to:

  • Identify, define and give examples of:
    • a covalent bond
    • an ionic bond
    • a metallic bond.
  • Explain the macroscopic and microscopic properties of bonding.
  • Name and write chemical formulae for common substances like:
    • water
    • sodium chloride
    • carbon dioxide
    • sulphuric acid.

What you should know:

Before you start this unit, make sure you can:

Introduction

In this unit you will learn to identify and describe bonding between elements to form compounds. Bonds formed between metals and non-metals are ionic bonds. Bonds formed between two or more non-metals are covalent bonds. Bonds formed between metals are metallic bonds. You will also learn to write the chemical formulae of commonly used substances like water, carbon dioxide and acids such as sulphuric acid.

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