Covalent bonding - AQA Synergy

1

What is a covalent bond?

2

How many different types of atom are in an NH3 molecule?

3

In a dot and cross diagram, what does each dot represent?

4

What is the greatest number of covalent bonds that one carbon atom can form?

5

How many electrons are shared in a double bond?

6

When a substance made of small molecules boils, what does the energy have to overcome?

7

Which statement best explains why substances made of small molecules cannot conduct electricity?

8

Which of these substances has a giant covalent structure?

9

What type of bond joins the atoms together in a polymer molecule?

10

Which statement best explains why diamond has a high melting point?