BRAINCAKEPhysical Properties
The halogens exist as diatomic molecules X2 at room temperature and pressure. Melting and boiling points increase down the group.
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Key terms in this lesson
- Group
- A vertical column of the periodic table, containing elements with the same number of outer-shell electrons.
More in Group 7
- Halogens
- Size of Atoms
- Electronegativity
- Melting and Boiling Points
- Trends in Oxidising Ability
- Displacement Reactions
- Halide Ions as Reducing Agents
- Sodium Chloride with Sulfuric Acid
All 16 lessons in Group 7 · All AQA AS-level Chemistry topics