Alkali Metals

#	Symbol	Name	Atomic Mass	Category
3	Li	Lithium	6.94	Alkali Metals
11	Na	Sodium	22.99	Alkali Metals
19	K	Potassium	39.098	Alkali Metals
37	Rb	Rubidium	85.468	Alkali Metals
55	Cs	Caesium	132.905	Alkali Metals
87	Fr	Francium	223	Alkali Metals

6 elements