Inorganic Chemistry - Group 1 Flashcards
1
Q
what happens when group 1 metals react with water?
A
a metal hydroxide and hydrogen are produced
2
Q
what can be observed when water is reacted with group 1 metals?
A
- fizzing (hydrogen is produced)
- metal floats and moves around on the water
- metal disappears
3
Q
what can be observed when water is reacted with lithium?
A
- fizzing (hydrogen gas is released)
- lithium floats and moves around on the water
- lithium disappears
4
Q
what can be observed when water is reacted with sodium?
A
- fizzing (hydrogen gas is released)
- sodium floats and moves around on the water
- sodium melts into a silver-coloured ball
- sodium disappears
5
Q
what can be observed when water is reacted with potassium?
A
- fizzing (hydrogen gas is released)
- potassium floats and moves around on the water
- catches fire with a LILAC flame
- potassium disappears
6
Q
what happens when group 1 metals react with air?
A
they oxidise
7
Q
what happens to metling point when going down group 1?
A
melting point decreases
8
Q
what happens to density when going down group 1?
A
density increases
9
Q
what happens to reactivity when going down group 1?
A
reactivity increases
