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Which property is common to all halogens

User ValayPatel
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2 Answers

5 votes
They get darker in colour as you go down the list, have a higher covalent radius as you go down the list, have a lower electronegativity as you go down the list, etc.

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User Ukjent
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1 vote
They are all diatomic
Reactivity decreases as you go down
All halogens need to gain 1 electron
User FatFingers
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