Chemestry group 1 elements - alkali metals

Group 1 elements are reactive soft metals. 

The alkali metals are Lithium, Sodium, Potassium, Rubidium, Caesium and Francium. 

The alkali metals are soft and have low density. 

The first three elements in the group are less dense in water. 

They all have one electron in their outer shells. this makes them very reactive and gives them similar properties. 

Trend of alkali metals: 

The trend for alkali metals is as you go…