BRAINCAKETrends in Melting and Boiling Temperature
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
- halogen
- Any element in group 7 of the periodic table, existing as diatomic molecules.
More in Group 7
- Group 7 Elements
- Trend in Electronegativity
- Trend in Reactivity
- Reactions with Group 1 and 2 Metals
- Halogen-Halide Displacement Reactions
- Halogen Disproportionation Reactions
- Reaction of Halides with Sulfuric Acid
- Sodium Chloride
All 14 lessons in Group 7 · All Edexcel AS-level Chemistry topics