(3403) Metallic Bonding and the Electron Sea Model, Electrical Conductivity - Basic Introduction

What is metallic bonding?

Metallic bonding occurs when metal atoms share their valence electrons among many cations, forming a bond similar to covalent bonding.

What model describes the sharing of electrons in metallic bonding?

The electron sea model describes how metal cations are surrounded by a sea of delocalized valence electrons.

What are delocalized electrons?

Delocalized electrons are valence electrons that are free to move and not confined to a single atom.

What property of metals allows them to conduct electricity?

The free-flowing, delocalized valence electrons in metals enable them to conduct electricity.

How do electrons move in a metal without an electric field?

Electrons in a metal move randomly unless an electric field is applied, which causes them to flow in one direction.

What happens to electrons when a voltage is applied to a metal?

Electrons flow from the negative terminal to the positive terminal due to the electric field created by the voltage.

What is malleability in metals?

Malleability is the property of metals that allows them to be hammered into thin sheets.

What does ductility mean in terms of metal properties?

Ductility is the property that allows metals to be pulled into thin wires.

Why are metals good thermal conductors?

Metals conduct heat efficiently because their delocalized electrons can move quickly to transfer thermal energy.

What is a characteristic property of metals that makes them shiny?

Luster is the characteristic property of metals that gives them a shiny appearance.

What is an example of a metal with a low melting point?

Zinc has a relatively low melting point of about 420 degrees Celsius.

What is the melting point of tungsten?

Tungsten has a high melting point of roughly about 3400 degrees Celsius.

Why doesn't the battery provide electrons to the metal?

The battery does not provide electrons; the electrons are already present in the metal and the battery creates a voltage to move them.

How does salt water conduct electricity?

Salt water conducts electricity due to the presence of free-flowing sodium and chloride ions.