Trends in properties of the halogens
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4 Terms
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Electronegativity ___ down the group
Decreases
2
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Why does electronegativity decrease down the group?
* Atomic radius increases and so more electron shielding from inner electrons
* Electrons further from the nucleus and so experience lower attraction
* Electrons further from the nucleus and so experience lower attraction
3
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Boiling points ___ down the group
Increase
4
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Why do boiling points increase down the group?
* Number of electrons increase
* Van der Waal forces increase resulting in greater intermolecular forces
* Van der Waal forces increase resulting in greater intermolecular forces
Note 
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