what is chlorine like at room temperature?
orange liquid
green gas
grey solid
what can bromide be used for?
sterilizing water
making plastics and pesticides
sterilizing wounds
What is bromide like at room temperature?
gas
liquid
solid
what colour is iodide's vapour when warmed?
green
yellow
purple
grey
brown
no colour
halogens belong in what group?
7
1
4
how are two halogens joined?
ionicly
covalently
how do the reactivity change going down group 7?
increase (in reactivity going down)
decrease (in reactivity going down)
which has the highest boiling point?
Fluorine
Bromine
Chlorine
Iodine