View Member-Area

IGCSE Chemistry Notes Metallic bonding

Download PDF

IGCSE  Chemistry  Metallic bonding Notes

Topic:Atoms, elements and compounds

Sub-Topic-Metallic Bonding

Syllabus Objectives

EXTENDED:

  • 1 Describe metallic bonding as the electrostatic attraction between the positive ions in a giant metallic lattice and a ‘sea’ of delocalised electrons
  • 2 Explain in terms of structure and bonding the properties of metals:
  • (a) good electrical conductivity
  • (b) malleability and ductility

Revision Notes

The above video is a preview of the actual revision notes available as a part of the paid membership. All learning resources in the form of pdfs that are available on the website are 100% printable and downloadable.

Topic: Metallic Bonding / Test your Understanding

Click the highlighted blanks to reveal the correct answer.

1 Definition

1. Metallic bonding is the
________________ electrostatic
attraction between
________________ positive
metal ions and a
________________ sea
of delocalised electrons.
2. Metals consist of a giant
________________ metallic
lattice structure.
3. In metallic bonding, metal atoms lose their
________________ outer shell
electrons.
4. These atoms become
________________ positive
ions.
5. The electrons that are released become
________________ delocalised
electrons.
6. Delocalised electrons are free to
________________ move
throughout the structure.

2 Structure of Metals

7. The metal structure contains a regular arrangement of
________________ positive
metal ions.
8. These ions are surrounded by a
________________ sea
of delocalised electrons.
9. The strong
________________ electrostatic
attraction between ions and electrons holds the metal together.
10. This attraction forms the
________________ metallic
bond in metals.

3 Property of Metals: Good Electrical Conductivity

11. Metals are good
________________ conductors
of electricity.
12. This property is due to the presence of
________________ delocalised
electrons.
13. These electrons are able to
________________ move
freely through the metal lattice.
14. When a potential difference is applied, electrons begin to
________________ flow
.
15. The movement of electrons produces an
________________ electric
current.

4 Property of Metals: Malleability

16. Malleability is the ability of a metal to be
________________ hammered
into thin sheets.
17. In metals, atoms are arranged in
________________ layers
of metal ions.
18. These layers can
________________ slide
over each other when a force is applied.
19. The metal does not break because the
________________ delocalised
electrons continue to hold the ions together.

5 Property of Metals: Ductility

20. Ductility is the ability of a metal to be drawn into
________________ wires
.
21. Metals are ductile because layers of metal ions can
________________ slide
past one another.
22. The sea of
________________ delocalised
electrons keeps the structure bonded together.
23. This allows metals to change
________________ shape
without breaking.

6 Summary

24. Metallic bonding occurs between
________________ positive
metal ions and
________________ delocalised
electrons.
25. Metals conduct electricity because they contain
________________ delocalised
electrons that can move freely.
26. Metals are malleable and ductile because layers of metal ions can
________________ slide
while the metallic bonding remains intact.

Members Area

Unlock the complete range of solved past exam papers along with mock exams, revision notes, timed quizzes, interactive flipbooks and many more exam preparation resources.

Unlock Complete Resources
Next Previous

IGCSE Chemistry Revised Syllabus Notes[ 2023-2025 exams]

1-States of matter

2 Atoms, elements and compounds

3 Stoichiometry

4 Electrochemistry

5 Chemical energetics

6 Chemical reactions

7 Acids, bases and salts

8 The Periodic Table

9 Metals

View IGCSE Chemistry Membership

10 Chemistry of the environment

11 Organic chemistry

12 Experimental techniques and chemical analysis