Intermolecular Forces

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What is a dipole?
A molecule (or part of a molecule) with a positive and negative end. When a molecule has a dipole we say it is polarised
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What are the three ways in which a molecule can be polarised?
1) Permanent Dipoles 2) Instantaneous 3) Induced
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What is a Permantent Dipole?
Occurs when when a molecule has two atoms bonded together which have different electronegativitesso one atom attracts the shared electrons more than the other
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What is an Instantaneous Dipole?
When the atoms that have bonded together have the same/similar electonegativities so the electrons are evenly shared. At a particular moment when the charge is momentarily undistabuted one end will be more negativly charge than the other end
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What is an Induced Dipole?
if an unpolarised molecule finds itself next to a dipole then it may get induced with a charge. This will happen by the dipole attracting or repelling the electrons in the unpolarised molecule.
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Name the four Intermolecular Bonds?
1) Hydrogen 2) Permanent Dipole-Permanent Dipole 3) Permanent Dipole-Induced Dipole 4) Instantaneous Dipole-Induced Dipole
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Card 2

Front

What are the three ways in which a molecule can be polarised?

Back

1) Permanent Dipoles 2) Instantaneous 3) Induced

Card 3

Front

What is a Permantent Dipole?

Back

Preview of the front of card 3

Card 4

Front

What is an Instantaneous Dipole?

Back

Preview of the front of card 4

Card 5

Front

What is an Induced Dipole?

Back

Preview of the front of card 5
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