noun🔗ShareアクチノイドAny of the 14 radioactive elements of the periodic table that are positioned under the lanthanides, to which they have similar chemistry."My chemistry textbook explains that the actinides are a series of radioactive elements, including uranium and plutonium, located below the lanthanides on the periodic table. "私の化学の教科書では、アクチノイドはウランやプルトニウムを含む一連の放射性元素であり、周期表ではランタノイドの下に位置すると説明されています。elementchemistryscienceChat with AIVocabulary GamePractice Reading
