Group 1 elements Flashcards
The group 1 elements are also known as:
Alkali metals
Name the elements:
Lithium, sodium, potassium, rubidium, caesium, francium
How many electrons do they have on their outer shell?
1
What is the trend in reactivity?
Increasing reactivity as you go down the group.
What is the trend in melting / boiling points?
As you go down the group, they get lower.
What is the trend in relative atomic mass?
As you go down the group, they get higher
Only ever form ________ compounds.
Ionic
What does a group 1 ionic compound typically look like?
White solids which dissolve into colourless solutions.
They readily form +1 ___________
Ions
What happens when they react with chlorine gas?
They form white salts called metal chlorides.
Group 1 metals can react with oxygen to form a _________
Metal oxide.
Lithium + water ->
Lithium hydroxide + hydrogen
