T4 Metallic Bonding and Giant Metallic Structures

Question 1

Define metallic bonding

Answer 1

Strong electrostatic force of attraction between the lattice of positive ions and the sea of delocalised electrons

Question 2

What do metals bond to in metallic bonding?

Answer 2

Metals bond to other metals

Question 3

Describe the structure of a Giant Metallic Structure?

Answer 3

Giant structure of positive ions and a sea of delocalised electrons

Question 4

What is metallic bonding?

Answer 4

A strong electrostatic force of attraction between delocalised electrons and positive metal ions.

Question 5

Why do giant metallic structure have high melting and boiling points? (3 points)

Answer 5

• Giant metallic structures
• Many strong forces of attraction (strong metallic bonds) between positive metal ions and delocalised electrons.
• Lots of energy needed to break the bonds/overcome the forces

Question 6

Do giant metallic structures conduct electricity?

Answer 6

Yes, they conduct electricity as solids and in liquid form

Question 7

Define ductile

Answer 7

Can be drawn out into wires

Question 8

Why do they conduct electricity?

Answer 8

The delocalised electrons are free to move - so can carry an electrical current and thermal energy

Question 9

Define malleable

Answer 9

Can be hammered into shape without breaking

Question 10

Why are giant metallic structures malleable and ductile?

Answer 10

The layers of positive metal ions can easily slide over each other