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Download this complete,fully solved and updated actual exam for CCEA AS1 Chemistry - Halogens
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What are the 4 halogens we study? Fluorine, chlorine, bromine and iodine Colour and state of fluorine at r.t.p Yellow gas Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:03 / 0:15 Full screen Brainpower Read More Colour and state of chlorine at r....

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  • July 13, 2024
  • 9
  • 2023/2024
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complete,fully
solved and
updated actual
exam for CCEA
AS1 Chemistry -
Halogens
What are the 4 halogens we study? - answer
Fluorine, chlorine, bromine and iodine


Colour and state of fluorine at r.t.p - answer
Yellow gas

, Colour and state of chlorine at r.t.p - answer
Yellow-green gas


Colour and state of bromine at r.t.p - answer
Red-brown liquid, with a red-brown vapour
forming when heated


Colour and state of iodine at r.t.p - answer
Grey-black solid, with a purple vapour forming
when heated


Why does the boiling/melting/state change as
the halogens descend? - answer More
electrons so increased V.D.W forces in the
molecule


Why does the atomic radius increase/first
ionisation energy decrease/electronegativity
decrease as the halogens descend? - answer
The outer electrons are further from the
nucleus

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