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Physical Properties of Halogenoalkanes
The boiling points of the halogenoalkanes depend on the strength of their intermolecular
forces.

As you go down group 7 from fluorine to iodine, the atomic radius of the halogen atoms,
and the number of electron shells that they have, increases.

This increases the instantaneous dipole…

Page 2

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Reactivity of the Halogenoalkanes
Halogenoalkanes contain a polar carbon-halogen bond.

The polarity arises from the different electronegativities of the carbon and halogen atoms.

Halogen atoms are more electronegative than carbon atoms.

The bonded electron pair is attracted more towards the halogen atom than towards the
carbon atom.

The result is…

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