Group 7 - the halogens
- Created by: emews
- Created on: 05-11-17 09:47
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- Group 7 - the halogens
- The group 7 elements are called the halogens
- Chlorine, bromine and iodine are the three common group 7 elements
- When they react with metals they form salts
- The melting point increases as you go down the group
- There is a trend in state from gas to liquid to solid as you go down the group
- The halogens become darker as you go down the group
- They get less reactive as you go down the group
- fluorine is the most reactive element in group 7
- Hydrogen chloride
- hydrogen + chlorine
- made from molecules
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