F321-Metallic Bonding

Question 0

Explain why the strength of the metallic bonding increases from sodium to aluminium

Answer 0

• from Sodium to Aluminium
• The ionic charge increases
• the number of delocalised electrons increases
• the strength of the metallic bonds increase which require more energy to overcome

Question 1

Define Metallic Bonding

Answer 1

The attraction of positive metal ions to delocalised electrons

Question 2

Describe the melting points of metals

Answer 2

They have a high melting point because a lot of energy is required to overcome the strong metallic bonds

Question 3

Describe the electrical conductivity of metals

Answer 3

They are good conductors of electricity.

Because the delocalised electrons are free to move and carry charge

Question 4

Describe the solubility of metals

Answer 4

They are insoluble because the solvent cannot overcome the strong metallic bonds

Question 5

Describe the bonding and structure of metals

Answer 5

They have metallic bonding - the attraction of positive metal ions to delocalised electrons.
They have a GIANT structure- held together by strong metallic bonds