Group 7 elements: chlorine, bromine and iodine
2.9 recall the colours and physical states of
the elements at room
temperature
|
Halogen
|
State
|
Colour
|
|
chlorine
|
gas
|
green
|
|
bromine
|
liquid
|
brown
|
|
iodine
|
solid
|
dark grey
|
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