1. New Information - Groups

2. X Metals have the following properties : Properties of Metals
They conduct electrical energy well
They conduct thermal energy well
They are shiny
They are malleable (can be hammered into shape)
They are ductile (can be drawn out into wires)
They are sonorous (make a ringing sound when hit)
All except mercury are solids at room temperature
Only a few metals are magnetic.
Magnetism is not a property of most metals! X

3. Properties of Non-Metals
Non-metals have the following properties :
They are poor conductors of electrical energy
They are poor conductors of thermal energy
Many of them are gases
They are brittle if they are solid
Both a diamond and a pencil ‘lead’ are made of the same element – carbon.

4. New Information - Periods

5. The Alkali Metals
Potassium
Sodium
Lithium
Rubidium
Francium
Caesium

6. How does electron structure affect reactivity?
The reactivity of alkali metals increases going down the group. Li
The atoms of each element get larger going down the group. Na
This means that the outer shell electron gets further away from the nucleus and is shielded by more electron shells.
increase in reactivity
The further an electron is from the positive nucleus, the easier it can be lost in reactions. K

7. Completing equations of reaction with water
2M(s) H2O(l)  2MOH (aq) H2(g)
alkali metal water  alkali metal + hydrogen hydroxide