noun 다운로드 🔗공유 동위원소 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. Examples : "Carbon has several isotopes, including carbon-12 and carbon-14, which scientists use in dating ancient artifacts. " 탄소는 탄소-12와 탄소-14를 포함한 여러 동위원소를 가지고 있으며, 과학자들은 이를 고대 유물을 연대 측정하는 데 사용합니다. element chemistry physics science substance AI와 채팅어휘 게임독해 연습