noun🔗ShareLantánidosAny of the 14 rare earth elements from cerium (or from lanthanum) to lutetium in the periodic table; because their outermost orbitals are empty, they have very similar chemistry; below them are the actinides."Chemists studying the properties of the lanthanides group them together because these elements behave similarly in chemical reactions. "Los químicos que estudian las propiedades de los lantánidos los agrupan porque estos elementos se comportan de manera similar en las reacciones químicas.elementchemistryscienceChat with AIVocabulary GamePractice Reading
