3.7 giant covalent structures

Question 1

Some covalently bonded substances have what kind of structures?

Answer 1

Giant structures

Question 2

What melting and boiling points do some covalently bonded substances that have giant structures have?

Answer 2

Very high melting points and boiling points

Question 3

Graphite contain what kind of layers?

Answer 3

Giant layers of covalently bonded carbon atoms. However, there are no covalent bonds between the layers.

Question 4

What does the layers in graphite having no covalent bonds mean?

Answer 4

This means that they can slide over each other, making graphite soft and slippery.

Question 5

What do the carbon atoms in diamond have?

Answer 5

The carbon atoms in diamond have a rigid giant covalent structure, making a very hard substance

Question 6

Why can graphite conduct electricity and thermal energy?

Answer 6

Because of the delocalised electrons that can move along its layers

Question 7

What a giant covalent structures?

Answer 7

A huge 3-D network of covalent bonded atoms