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Group 1A elements are alkali metals like sodium and potassium, which are highly reactive and metallic. Group 7A elements are halogens like chlorine and fluorine, which are highly reactive nonmetals.
Among the salt elements, compounds containing alkali metals such as sodium, potassium, and lithium tend to be the most soluble in water due to their strong ionic interactions. These salts form highly soluble compounds when dissolved in water.
Sometimes these are called the "representative" elements.
Potassium and Hydrogen
The alkali metals. Group 1A.
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because it has s1 configuration.
There are 7 elements in group 1: hydrogen, lithium, sodium, potassium, rubidium, cesium, and francium. All of these (except hydrogen) are considered alkali metals. They react very easily with other elements.
The elements in groups 1A to 8A are called the representative elements or main group elements. Each group corresponds to a specific column on the periodic table and has similar chemical properties due to their electron configurations.
Alkali is a group of elements, not just one specific elements. Alkali metals are Group 1A elements starting with Hydrogen then lithium and so on.
valence electrons and electronic configuration.
Alkalene metals like hydrogen are present