Alkali Metals
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The alkali metals, found in group 1 of the periodic table (formerly known as group IA), are very reactive metals that do not occur freely in nature. These metals have only one electron in their outer shell. Therefore, they are ready to lose that one electron in ionic bonding with other elements. As with all metals, the alkali metals are malleable, ductile, and are good conductors of heat and electricity. The alkali metals are softer than most other metals. Cesium and francium are the most reactive elements in this group. Alkali metals can explode if they are exposed to water.
The alkali metals Li, Na, K, Rb, Cs, Fr occupy the first column of the periodic table. Their common oxidation state of +1 made their chemistry simple and predictable. Most general chemistry textbooks devote only three to four pages to this group. One can get the impression that, except for the fun that can be had with the addition of alkali metals to water, this group is boring! Here, we see that alkali metal chemistry can be full of surprises and hidden complexity that take the boredom out of this family of elements
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