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Alkali Metal

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Alkali metal
The alkali metals are a group (column) in the periodic table consisting of the chemical elements lithium (Li), sodium (Na), potassium (K), rubidium (Rb), caesium (Cs), and francium (Fr). This group lies in the s-block of the periodic table of elements as all alkali metals have their outermost electron in an s-orbital: this element/electron configuration results in their characteristic properties. The alkali metals provide the best example of group trends in properties in the periodic table, with elements exhibiting well-characterized homologous behaviour.

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WordNet 2.0 Dictionary

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alkali metal

Noun
1. any of the monovalent metals of group I of the periodic table (lithium or sodium or potassium or rubidium or cesium or francium); "the hydroxides of the alkali metals are strongly alkaline"
(synonym) alkaline metal
(hypernym) metallic element, metal


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alkali metal
n. alkali

Integrated Circuit Dictionary

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Alkali Metal
family of group IA metals in the periodic table made up of, lithium, Li, sodium, Na, potassium, K, rubidium, Rb, cesium, Cs, and francium, Fr, all group IA elements except hydrogen, H. The oxides and hydroxides of these metals are strong bases. See also, alkali.

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General Chemistry Glossary

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alkali metal
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(alkaline earth metal) The Group 1 elements, lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), and francium (Fr) react with cold water for form strongly alkaline hydroxide solutions, and are referred to as "alkali metals". Hydrogen is not considered an alkali metal, despite its position on some periodic tables.


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