Alkali Metal Definition

Chemistry Glossary Definition of Alkali Metal

Lithium is an example of an alkali metal.
Lithium is an example of an alkali metal. Tomihahndorf, Public Domain
Alkali Metal Definition: An alkali metal is any of the elements found in Group IA of the periodic table. Alkali metals are very reactive chemical species which readily lose their one valence electron to form ionic compounds with nonmetals.

Examples: Lithium, Potassium, Cesium