Periodic Table Flashcards
When alkali metals react with non metals what do they form?
White ionic compounds that are highly soluble and produce a colourless solution
When alkali metals react with water what can you see?
Float on water
Move quickly
Can ignite
Fizzing
What do alkali metals and water form
Metal hydroxides+ hydrogen
Dissolve to form alkaline solutions
As you go down the halogens what changes?
Reactivity decreases
Higher melting and boiling point
What colour and state is Flourine?
A yellow reactive gas
What colour and state is chlorine
It is a fairly reactive poisonous green gas
What colour and state is Bromine?
It is a red/brown volatile liquid
What colour and state is Iodine?
It is a dark grey crystalline solid
Purple vapour
As you go down the alkali metals group what changes?
1) more reactive
2) get lower melting and boiling points
3) density decreases
Colour of potassium chromate
Yellow
Colour of potassium manganate
Purple
Copper sulphate colour is
Blue
Weathered copper is
Green