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Alkali metals (Rbcebb)

Definition
Any of the monovalent metals of group I of the periodic table: lithium, sodium, potassium, rubidium, cesium or francium. (Source: wordnet.princeton.edu)
Broader Term
Classes of chemical elements (Rbceb)
Related Terms (Hierarchical)
Halogens (Rbcebh)
Nonmetals (Rbcebn)
Trace elements (Rbcebr)
Transuranium elements (Rbcebt)