Metallic bond

The video tutorial explains the structure of metals, focusing on the interaction between positively charged metal ions and a sea of negative electrons. Metal atoms easily release their outer shell electrons, which move freely within the lattice of positive ions. This electron movement and the resulting attraction between electrons and ions contribute to the mechanical strength of metals.

What is the relationship between positively charged ions and electrons in a metal?

• They are both positively charged.

• They repel each other.

• They form a sea of negative electrons around positive ions.

• They do not interact.

What happens to the outer shell electrons of metal atoms?

• They are absorbed by the nucleus.

• They remain stationary.

• They are given up and move randomly.

• They become positively charged.

How do the outer shell electrons behave in the metal lattice?

• They form a rigid structure.

• They move randomly throughout the lattice.

• They are fixed in place.

• They create a vacuum.

What gives metals their mechanical strength?

• The weight of the metal atoms.

• The attraction between electrons and ions.

• The size of the metal atoms.

• The color of the metal.

Why is the attraction between electrons and ions important in metals?

• It changes the metal's density.

• It determines the color of the metal.

• It provides mechanical strength.

• It affects the melting point.