2(a) Group 1(alkali metals) Flashcards
1
Q
Reactions
A
- With water
- With air/oxygen
2
Q
Reactions with water
A
Metal + Water -> Metal Hydroxide + Hydrogen
3
Q
Reactions with Air
A
Metal + Oxygen -> Metal Oxide
4
Q
Trend in Group 1
A
As you go down the group:
Reactivity increases - more shells so more shielding so electrostatic attraction decreases between nucleus and outer shell electrons so outer shell electrons are lost more easily
Melting/boiling points decrease
Density increases
5
Q
Properties of Group 1
A
- Solid at room temp.
- Shiny went cut
- Soft
- Good conductors of electricity