Homework: Intermolecular Forces

• Chemistry
• Further Education (Key Stage 5)

Homework: Intermolecular Forces

You are going to write notes summarising the basics of intermolecular forces.

These notes must include:

• A description and labelled diagram showing the formation of London forces.
• A description and labelled diagram explaining the formation of permanent dipole forces.
• A description and labelled diagram explaining the formation of hydrogen bonds.
• Definitions of the words on the following page.
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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

• London forces (ID-ID)
• Permanent dipole
• Hydrogen bond
• Dipole
• Electronegativity
• Intermolecular force
• Electron cloud
• Electrostatic attraction
• Polar bond

Which structure has intermolecular forces?

1. Giant ionic lattice
2. Giant covalent structure
3. Simple molecular
4. Giant metallic lattice

Intermolecular forces are...

1. Weak
2. Strong

Which intermolecular force is strongest?

1. Instantaneous dipole-induced dipole
2. Permanent dipole
3. Hydrogen bonding

Which element is the most electronegative?

1. Fluorine
2. Chlorine
3. Oxygen
4. Nitrogen

Which element CANNOT form hydrogen bonds?

1. Fluorine
2. Chlorine
3. Oxygen
4. Nitrogen

In a permanent dipole, the more electronegative element will have a...

1. positive charge.
2. negative charge.

Explain why Chlorine is a gas at room temperature, but water is a liquid. (4 marks).