Paper 2: The Alkali Metals Flashcards
1
Q
What group are known as alkali metals?
A
Group 1
2
Q
What are the physical properties of alkali metals?
A
Good conductors or heat and electricity
Shiny when freshly cut
Soft
Have low melting points
3
Q
What do alkali metals produce when reacting with water?
A
(An alkaline metal) hydroxide + hydrogen
4
Q
What happens to the reactivity of the alkali metals as you go down the group?
A
It increased
5
Q
How does lithium react?
A
Fizzes steadily
6
Q
How does sodium react?
A
Melts into a ball (from the heat released in the reaction) and fizzes rapidly
7
Q
How does potassium react?
A
Gives off sparks
Hydrogen produced, burns with a lilac flame
8
Q
Why do lithium , sodium, and potassium float in water?
A
Because they are less dense than water
9
Q
How is lithium, sodium and potassium stored?
A
In oil
