Physical Properties
- Poor conductors of heat and electricity
- Brittle
- Low melting and boiling points
Chemical Properties
- Gain 1 electron to form 1- negative ions
- React with metals to form ionic compounds
- React with non-metal to form covalent compounds
Displacement Reaction
- A reaction that take place in Halogens
- In a solution, the more reactive halogen will displace the less reactive haloge
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