Group 1 - Alkali Metals Flashcards
1
Q
Do alkali metals have low or high densities?
A
Low densities (the first three are less dense than water)
2
Q
What do alkali metals form and with what?
A
Ionic compounds with non-metals
3
Q
Describe the ionic compounds alkali metals form
A
They are white compounds that dissolve in water to form colourless solutions
4
Q
What happens if you react alkali metals with water?
A
They float, fizz and release hydrogen
5
Q
How can you test for released hydrogen?
A
Squeaky pop test
6
Q
What else do alkali metals form?
A
Hydroxides that dissolve in water to form alkaline solutions
7
Q
What happens to the elements as you go down group 1?
A
1) They have lower melting/boiling points
2) They become more reactive (outer electron further away)
