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definition Potassium is a chemical element with symbol K (from Neo-Latin kalium) and atomic number 19. Elemental potassium is a soft silvery-white alkali metal that oxidizes rapidly in air and is very reactive with water, generating sufficient heat to ignite the hydrogen emitted in the reaction and burning with a lilac flame. more like this
02.01.19 more like this
K more like this
source more like this
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narrower potassium original
in scheme commodity-code original
is primary topic of potassium