noun🔗Share同位素 Any of two or more forms of an element where the atoms have the same number of protons, but a different number of neutrons within their nuclei. As a consequence, atoms of isotopes will have the same atomic number but a different mass number."Carbon has several isotopes, including carbon-12 and carbon-14, which scientists use in dating ancient artifacts. "碳有好几种同位素，包括碳-12和碳-14，科学家们用它们来测定古代文物的年代。elementchemistryphysicssciencesubstanceChat with AIVocabulary GamePractice Reading
