noun Télécharger 🔗Partager Isotopes 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. " Le carbone possède plusieurs isotopes, dont le carbone 12 et le carbone 14, que les scientifiques utilisent pour dater les artefacts anciens. element chemistry physics science substance Chat avec IAJeu de vocabulairePratiquer la lecture