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Halogens
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Total cards: 10•Content version: v4•Public deck•Updated: 8/1/2026
Card preview (10)
#1
Front (Question)
What are halogens
Back (Answer)
Group 7 elements F, Cl, Br, I
#2
Front (Question)
State of halogens at room temperature
Back (Answer)
Fluorine gas Chlorine gas Bromine liquid Iodine solid
#3
Front (Question)
How does reactivity change down Group 7
Back (Answer)
Reactivity decreases
#4
Front (Question)
Why reactivity decreases down Group 7
Back (Answer)
More shielding Outer shell further Harder to gain electron
#5
Front (Question)
What ions do halogens form
Back (Answer)
Gain 1 electron Form negative ions
#6
Front (Question)
Example displacement reaction
Back (Answer)
Cl2 + 2KBr → 2KCl + Br2
#7
Front (Question)
Colour trend of halogens
Back (Answer)
Fluorine pale yellow Chlorine green Bromine red-brown Iodine grey solid, purple vapour
#8
Front (Question)
Trend in boiling point down Group 7
Back (Answer)
Increases
#9
Front (Question)
Why boiling point increases
Back (Answer)
More electrons Stronger intermolecular forces
#10
Front (Question)
Back (Answer)