Homework: Covalent Bonding

• Chemistry
• Upper Secondary (Key Stage 4)
• BTEC

Homework: Covalent Bonding

You are going to write notes summarising the basics of covalent bonding.

These notes must include:

• A labelled diagram showing the formation of covalent bonds.
• A labelled diagram showing the difference between simple molecular structures and giant covalent structures.
• Definitions of the words on the following page.
• An explanation of the properties of simple molecular structures and giant covalent structures. (Melting points, electrical conduction). 

I have attached videos to help you, however I would encourage you to use other reliable sources to supplement e.g. the BTEC textbook.

There are slides where you can attach a picture of your notes, so that I can review them. 

There are some questions to answer at the end of the slides. You will need a periodic table to help you with some of the answers.

Definitions

• Covalent bond
• Dative covalent bond
• Electrostatic force
• Simple molecule (give common examples)
• Giant covalent structure (give common examples)
• Graphite and graphene.

Upload a photo of your notes here.

Covalent bonding occurs in...

1. Metals
2. Metals and non-metals
3. Non-metals

NaCl

1. Ionic
2. Covalent
3. Metallic

C​6​​H​12​​O​6​​

1. Ionic
2. Covalent
3. Metallic

Covalent compounds

Which of the following are covalent compounds?

Sodium  chloride

Water

Steel

Calcium carbonate

Carbon dioxide

Iron fluoride

Magnesium Sulfate

Sulfur dioxide

Carbon

Nickel

Draw a dot and cross diagram showing the bonding in ammonia.

Explain why diamond has a high melting point. (4 marks).

Explain why oxygen is a gas at room temperature. (3 marks).