Metal Structure & Delocalised Electrons

  • Metal atoms are held together by strong metallic bonds forming a lattice structure.
  • This type of bonding occurs in metals and metal alloys, which are mixtures of metals.
  • Within the metal lattice, the atoms lose their valence electrons and become positively charged metal ions.
  • The valence electrons no longer belong to any specific metal atom and are said to be delocalised.
  • This means they can move freely between the positive metal ions and act like a “sea of electrons”.

Representing Metallic Bonding -AQA, IGCSE & GCSE Chemistry revision notes

Diagram showing the ways of representing a metal lattice structure with delocalised electrons

AQA GCSE Chemistry Notes

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Morgan Curtin Chemistry

Author: Morgan

Morgan’s passion for the Periodic Table begun on his 10th birthday when he received his first Chemistry set. After studying the subject at university he went on to become a fully fledged Chemistry teacher, and now works in an international school in Madrid! In his spare time he helps create our fantastic resources to help you ace your exams.