Group 7 Halogens | GCSE Chemistry Questions
Halogens are non-metals that exist as diatomic molecules (e.g., Cl2, Br2).
What state of matter is iodine at room temperature?
What is Group 7 Halogens | Questions?
"The elements in Group 7, known for being reactive non-metals that form salts."
What happens to the boiling point as you go down Group 7?
Which halogen is a red-brown liquid at room temperature?
A more reactive halogen will ____ a less reactive halogen from its salt solution.
Group 7 Trends
Reactivity decreases as you go down the group.
Melting and boiling points increase down the group.
More reactive halogens displace less reactive ones from salts.
Exam Tip: Halogens gain one electron to form -1 halide ions.
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