Alkali metals include lithium (Li), sodium (Na ) , potassium (K), rubidium (Rb), caesium (Cs), and franc (Fr) chemical elements. They shape Group 1, which is part of the s-block of a periodic table, along with hydrogen. All alkaline metals have their outermost electron in s-orbital, which gives very similar characteristic properties. This common electron configuration. Alkali metals, in addition, are the strongest indicators of group patterns in properties in a standard table and have well-characterized components with related behaviour. After its leading member, this family is also known as the lithium family.
