Intermolecular Forces

Created by: Allie Reynolds
Created on: 02-04-14 14:11

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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Other cards in this set

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

Card 4

Front

What is an Instantaneous Dipole?

Back

Card 5

Front

What is an Induced Dipole?

Back

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Intermolecular Forces