OXIDISING POWER OF HALOGENS

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OXIDISING POWER OF HALOGENS
R W Grime Ripon Grammar School
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Oxidising power trend Cl2 gt Br2 gt I2

• When a halogen acts as an oxidising agent, it
  gains electrons (taken from the oxidised
  species).
• X2 2 e- ? 2 X-

Down the group it becomes harder to gain an
electron because atoms are larger there is
more shielding (due to extra electron shell)