Learn: Metallic Bonding and Metal Properties

Welcome!Building on what you've already learned about bonding types, let's explore metallic bonding and the unique properties of metals together. This will help you understand why metals are so useful in everyday life.

What is Metallic Bonding?Metallic bonding occurs in metals. It involves a lattice of positively charged metal ions surrounded by a 'sea' of delocalised electrons. These electrons are free to move throughout the structure. This bond gives metals their unique properties, such as being good conductors of electricity and heat.

Why Are Metals Good Conductors?In metallic bonding, the delocalised electrons can move freely. This movement allows metals to conduct electricity and heat easily. For example, copper wires use this property to transfer electrical energy efficiently.

Properties of MetalsMetals have several key properties due to metallic bonding: they are malleable (can be hammered into shape), ductile (can be stretched into wires), conductive, and have high melting points. These properties make metals useful for construction, wiring, and tools.

Strength and High Melting PointsThe strong attraction between the metal ions and delocalised electrons gives metals high melting points and makes them tough. This is why materials like steel are used in skyscrapers and bridges.

Review Time!Great work! You've learned about metallic bonding and metal properties, including conductivity, malleability, and high melting points. Now let's test your understanding with a few questions.