• word of the day

    atomic number 19

    atomic number 19 - Dictionary definition and meaning for word atomic number 19

    (noun) 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
    Synonyms : k , potassium
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