Metallic Bonding

Question 1

Characteristic features of graphite ?

Answer 1

• exists in metals only

- metals can conduct electricity due to the presence of delocalized electrons

Question 2

Metallic bonding?

Answer 2

The attractive force existing between stationary metal ions and mobile delocalized electrons is called metallic bonding

Question 3

Allotropes?

Answer 3

Substances that have the same chemical composition but different structures and physical properties

Question 4

Properties of graphite

Answer 4

• hexagonal layer
• weak forces hold them together (called Van der Waal’s forces)
• graphite is a good conductor of electricity
• soft

Question 5

Structure of graphite?

Answer 5

• made up of carbon atoms only

- each carbon atom is bonded to three other carbon atoms forming hexagonal layers

Question 6

What is the structure of diamond called?

Answer 6

Tetrahedral structure

Question 7

Characteristic features of a diamond?

Answer 7

• diamond is made up of carbon atoms only
• each carbon atom is bonded to 4 other carbon atoms
• not a good conductor of electricity
• hard due to its covalent bonds
• no free electrons