A-Level Chemistry (Edexcel)
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Topic 4: Inorganic Chemistry and the Periodic Table
Topic 4B: The elements of Group 7 (halogens)
The Reactivity of the Halogens
8:33
Understand reasons for the trends in melting and boiling temperatures, physical state at room temperature, and electronegativity for Group 7 elements
Spec
4.9
4.12
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