Colours, Equations (halogens and alkalis) Flashcards
1
Q
Fluorine colour
A
pale yellow
2
Q
Chlorine colour
A
yellow-green
3
Q
Bromine
A
red-brown
4
Q
Iodine
A
shiny grey crystals but can easily turn into purple vapour when they are WARMED up
5
Q
Halogen state of matter
A
the halogens can exist in all three states of matter at room temperature.
(gas, liquid, and solid)
6
Q
Alkali metal + water
A
metal hydroxide + hydrogen gas
7
Q
Alkali(/metal) + oxygen
A
metal oxide
