The alkali metals are a group of chemical elements from the s-block of the periodic table with similar properties: they appear silvery and can be cut with a plastic knife.
Alkali metals are highly reactive at standard temperature and pressure and readily lose their outermost electron to form cations with charge +1.
All the discovered alkali metals occur in nature.
The alkali metals are lithium (Li), sodium (Na), potassium (K), rubidium (Rb), caesium (Cs),and francium (Fr).
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