Electrones deslocalizados

The video explains how metals have free electrons from their outer shell, creating a sea of electrons that move through metal cations. These delocalized electrons are responsible for many properties of metals, such as their ability to conduct electricity and heat.

What happens to electrons when they are removed from the outer shell of an atom?

• They become part of a sea of free electrons.

• They disappear completely.

• They turn into protons.

• They form a solid structure.

How do free electrons interact with metal cations?

• They repel the cations.

• They form a new compound with the cations.

• They circulate through a mesh of metal cations.

• They are absorbed by the cations.

What is one of the key properties that delocalized electrons provide to metals?

• They make metals transparent.

• They allow metals to conduct electricity.

• They make metals brittle.

• They cause metals to rust.

Which of the following is NOT a result of having delocalized electrons in metals?

• Increased electrical conductivity

• Ability to conduct heat

• Enhanced thermal conductivity

• Formation of a rigid lattice

What role do free electrons play in the properties of metals?

• They make metals magnetic.

• They contribute to the electrical and thermal conductivity of metals.

• They cause metals to expand.

• They make metals heavier.