Group VII: The Halogens
- Created by: Shannon Tennant-Smith - Team GR
- Created on: 30-01-14 15:34
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Physical Properties
- Down the group, boiling point increases:
- increased no. of electrons
- greater chance of electron distortion
- more likely to form temporary dipoles
- strength of van der Waals increases
Chemical Properties
- Down the group, reactivity decreases:
- more shells - more shielding
- greater shielding outweighs increase in protons
- greater atomic radius
- less attraction for the extra electron
Redox Reactions with Halides
- Reactivity of halogens can be shown with displacement reactions:
- A solution of the halogen is prepared and added to a sample of halide salt
- Displacement has occured…
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