noun🔗ShareنظائرAny 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. "للكربون عدة نظائر، بما في ذلك الكربون-12 والكربون-14، والتي يستخدمها العلماء في تأريخ القطع الأثرية القديمة.elementchemistryphysicssciencesubstanceChat with AIVocabulary GamePractice Reading
