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Group 7 (halogens) – chlorine, bromine and iodine
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What all halogens have in common

What all halogens have in common

Group 7 elements are called halogens, and chlorine, bromine and iodine are all non-metals in this family. Each atom has seven electrons in its outer shell, so each atom needs to gain one more electron to get a full outer shell.

Group 7 (halogens) – chlorine, bromine and iodine Lesson

  1. IGCSE
  2. /Chemistry
  3. /Group 7 (halogens) – chlorine, bromine and iodine

Step-by-step lessons covering Edexcel IGCSE Chemistry Group 7 (halogens) – chlorine, bromine and iodine for IGCSE Chemistry. Each lesson works through exam-style questions in Paper 1 and Paper 2 format. Build a solid grasp of atomic structure, bonding and the mole concept early, since these underpin almost every other topic, then move on to the more calculation-heavy quantitative and organic chemistry content.