Lesson: Metallic Bonding Chemistry • Second Year of Secondary School

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In this lesson, we will learn how to describe metallic bonding and the effect it has on the physical and chemical properties of metals.

Students will be able to

describe how metals form giant lattice structures arranged in layers of regular patterns,
describe the bonding in metals as a structure of positive ions surrounded by a sea of delocalized valence electrons,
explain the term delocalized as referring to free electrons that can move around the metal lattice,
describe how electrostatic interactions between the positive ions and delocalized valence electrons give rise to metallic bonding,
describe how metallic bonding is responsible for the properties of metals, such as having high melting points and being malleable, ductile, and good conductors of heat and electricity,
briefly explain what an alloy is (alloys are covered in a separate lesson).