noun🔗Share악티늄족 원소Any of the 14 radioactive elements of the periodic table that are positioned under the lanthanides, to which they have similar chemistry."Uranium, an actinide, is a heavy metal used in some power plants. "악티늄족 원소인 우라늄은 일부 발전소에서 사용되는 중금속입니다.elementchemistryscienceChat with AIVocabulary GamePractice Reading
