noun🔗ShareA 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."The fertilizer contained potassium to help the plants grow stronger. "elementchemistrysubstancematerialscienceChat with AIVocabulary GamePractice Reading
noun🔗ShareA single atom of this element."A single potassium atom is too small to see with the naked eye. "elementchemistrysubstanceChat with AIVocabulary GamePractice Reading