Group 1 – the alkali metals

The Group 1 elements are called the alkali metals. They are placed in the vertical column on the left-hand side of the periodic table.

Periodic table with group 1 elements highlighted: lithium, sodium, potassium, rubidium, caesium and francium

All the Group 1 elements are very reactive. They must be stored under oil to keep air and water away from them. Group 1 elements form alkaline solutions when they react with water, which is why they are called alkali metals.