Metallic Bonding

Question 1

What does “delocalized” mean? How do delocalized electrons in metallic bonds contribute to conduction?

Answer 1

Delocalized: (electrons’) freedom to move. Delocalized electrons allow energy to pass through more easily, so:

• Metallic bonds are good conductors of electricity
• Metallic bonds are good conductors of heat

(because metallic bonds have delocalized electrons–alowing flow)

Question 2

What model of electrons does Metallic Bonding follow?

Answer 2

Electron Sea Model

Question 3

What is Malleability?

Are metallic bonds malleable?

Answer 3

Malleability relates to ability to change shape

Metallic bonds are malleable

Question 4

What is Ductility?

Are Metallic Bonds ductile? Why?

Answer 4

Ductility refers to tendency/ability to stretch when pulled (opposite of brittle)

Metallic bonds are ductile b/c nuclei can slide past electrons easily

Question 5

Do metals have high or low melting points? Why?

Answer 5

Metals have high melting points. This is because their positive and negative charges attract strongly (strong electrostatic forces)