Structure of Metals and Alloys

Question 1

What is Metallic Bonding

Answer 1

Attraction between the positive metal ion and delocalised electrons.

Question 2

What is an Alloy

Answer 2

Mixtures of metals with metals or a non-metal e.g. stainless steel is a mixture of iron and carbon

Question 3

What is the structure of Metallic Bonding

Answer 3

Layers of metal positive ions surrounded by delocalised electrons

Question 4

What is the structure of an Alloy

Answer 4

Irregular layers

Question 5

Explain the property of Conduct electricity metals

Answer 5

Delocalised electrons are free to move and carry the charge
through the metal.

Question 6

Explain the property of Conducts thermal energy metals

Answer 6

Delocalised electrons move Energy transferred

Question 7

Explain the property of Strong High melting point metals

Answer 7

Strong attraction between the metal positive ion and the
delocalised electrons, so lots of energy needed to overcome
attraction

Question 8

Explain the property of Bent and shaped (malleable) metals

Answer 8

Layers of atoms are able to slide over each other.

Question 9

Explain the property of Harder than pure metals (Alloys)

Answer 9

The atoms are different sizes. Layers are distorted and cannot
easily slide over each other.