3.5.1 Metal Structure: bonding and properties

Question 1

What two components make up the structure of a metal?

Answer 1

A lattice of positive metal ions and a sea of delocalised electrons.

Question 2

What is metallic bonding?

Answer 2

The electrostatic attraction between the positive metal ions and the negative delocalised electrons.

Question 3

True or False: Metallic bonding is very strong.

Answer 3

True

Question 4

True or False: The delocalised electrons are not free to move.

Answer 4

False

Question 5

Do metals have high melting points?

Answer 5

Yes

Question 6

Why do metals have high melting points?

Answer 6

The metallic bonding is very strong so lots of energy is needed to break it.

Question 7

Do metals conduct electricty?

Answer 7

Yes

Question 8

Why do metals conduct electricity?

Answer 8

The delocalised electrons are charged and free to move through the lattice.

Question 9

Are metals malleable?

Answer 9

Yes

Question 10

Why are metals malleable?

Answer 10

There are layers of metal ions that can slide over each other.