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Intermolecular forces
London forces (instantaneous and induced dipoles)
- When non-polar atoms meet, there are temporary attractions and repulsions between the nuclei and
surrounding electrons
- Temporary displacement of the electrons creates a temporary dipole which induces a temporary
dipole in neighbouring atoms/molecules
- The more electrons, the more polarisable…

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- Oxidation number is number of atoms gained or lost by an atom when it becomes an ion
- Oxidation is loss of electrons (+ve oxidation number), reduction is gain (-ve oxidation number)
- The more electronegative atom in a covalent substance has the negative oxidation state
- In…


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