Covalent bonding

• Science
• Upper Secondary (Key Stage 4)
• GCSE

Covalent bonding - small covalents

Which one shows a
covalent bond?

1. Left: because they are sharing electrons
2. Right: because electrons are transferred
3. Both
4. None

What are you going to learn?

In this lesson you will:

• check your understanding of the covalent bond
   
• prepare to practice drawing or completing covalent bonds

Covalent bonds are formed between non metals:

Which of the following will not be involved in a covalent bond?

1. carbon
2. magnesium
3. hydrogen
4. fluorine

Which of the following elements will not form a covalent bond?

1. Helium
2. Boron
3. Sulfur
4. Iodine

electron shared by H

electron shared by O

electrons not being shared by O

Which sub-atomic particles are shared in a covalent bond?

1. proton
2. inner shell electron
3. neutron
4. outer shell electron

What term decribes
what happens to
electrons in a covalent bond?

What group of the periodic table
is carbon in?

Group 1

Group 3

Group 4

Group 7

Group 0

How many more electrons does
carbon need to have a full outer shell?

1

3

4

7

0

How many electrons does
carbon share in covalent bonds?

1

3

4

7

0

What group is chlorine in?

1. 1
2. 7
3. 0
4. 2

The number of electrons a non-metal atom needs is the number it will...

1. loose
2. gain
3. transfer
4. share

How many electrons does
chlorine need for a full outer
shell?

1. 1
2. 7
3. 0
4. 2

How many electrons does
chlorine share?

1. 1
2. 7
3. 0
4. 2

Oxygen is in group 6
how many will it
share?

Nitrogen is in group 5
how many will it
share?

Oxygen has 6 outer shell electrons, it shares 2, how many electrons are not involved in a covalent bond?

1. 2
2. 4
3. 6
4. 8

Bromine is in group 7, it shares 1 electron with Hydrogen, how many electrons are not involved in a covalent bond?

1. 2
2. 4
3. 6
4. 8

How many of the hydrogen
atom electrons are not involved
in a covalent bond?

1. 0
2. 1
3. 2
4. 8

Worksheet

Try to finish everything in class and hand in the worksheet at the end of this lesson

Draw, snip and post a covalent bond diagram for H2

Draw, snip and post a covalent bond diagram for O2

Draw, snip and post a covalent bond diagram for CH4

Draw, snip and post a covalent bond diagram for N2

Draw, snip and post a covalent bond diagram for F2

Draw, snip and post a covalent bond diagram for CO2

Draw, snip and post a covalent bond diagram for H2O

How did that go?

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