potassium -
a light soft silver-white metallic element of the alkali metal group; oxidizes rapidly in air and reacts violently with water; is abundant in nature in combined forms occurring in sea water and in carnallite and kainite and sylvite
metallic element,
metal any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.
carnallite a white or reddish mineral consisting of hydrous chlorides of potassium and magnesium; used as a fertilizer and as a source of potassium and magnesium
kainite a white mineral consisting of magnesium sulphate and potassium chloride; a source of potassium salts; used as a fertilizer
langbeinite a mineral consisting of potassium magnesium double sulphate; used as a fertilizer
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Wiktionary
Substantiv
potassium -
A soft, waxy, silvery reactive metal that is never found unbound in nature; an element symbol K with an atomic number of 19 and atomic weight of 39. 0983. The symbol is derived from the Latin kalium.
Wikipedia
Potassium is the chemical element with the symbol K, atomic number 19, and atomic mass 39.0983. Elemental potassium is a soft silvery-white metallic alkali metal that oxidizes rapidly in air and is very reactive with water, generating sufficient heat to ignite the evolved hydrogen. Potassium and sodium are alkali metals and are chemically very similar.
OmegaWiki Dictionary
Ω
potassium A silvery-white metallic alkali metal element with the symbol K and atomic number 19, occurs principally as component of sea water and in several minerals like carnallite, polyhalite and sylvite. It is being used as fertilizer as either the chloride, sulfate or carbonate.
