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Reactions Between Halogens and Metals

Chemistry: Edexcel IGCSE, topic 8.1.9

Reactions Between Halogens and Metals

Halogens react with metals to form metal halides. Metal halides are ionic compounds that are solid at room temperature.

Reactivity

Reactivity

  • The more reactive the halogen, the more violent the reaction.
Chlorine example

Chlorine example

  • Sodium + chlorine → sodium chloride
  • 2Na(s) + Cl2(g) → 2NaCl(s)
Bromine example

Bromine example

  • Aluminium + bromine → aluminium bromide
    • 2Al(s) + 3Br2(l) → 2AlBr3(s)
General formula

General formula

  • The general formula for the reaction between a halogen and metal is:
  • metal + halogen → metal halide

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