Halogens and Alkali Metals Mindmap
- Created by: Sophie
- Created on: 01-05-13 18:27
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- Alkali Metals vs the Halogens
- Alkali metals
- As you go down group 1 the get MORE reactive
- Outer electron more easily lost as its further from the nucleus
- Lower Melting and Boiling Points
- Low density
- One outer electron
- Form ionic compounds with non-metals, form a 1+ ion
- Produce white compounds and dissolve in water to form colourless solutions
- React with water to prodcue H2
- React vigourously
- Form hydroxides that dissolve in water to give alkaline solutions
- As you go down group 1 the get MORE reactive
- Halogens
- As you go down group 7 they become LESS reactive
- Harder to gain an electron as the outer shell is further from the electron
- HIGHER Melting and Boiling Points
- Non metals with coloured vapours
- All exist as molecules
- Form ionic bonds with metals, 1-
- More reactive halogens displace less reactive ones
- As you go down group 7 they become LESS reactive
- Alkali metals
- Form ions with a 1+ charge
- React with water to form Hydrogen
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