Tesaurus d'Art i Arquitectura Getty Institute 0000-00-00 2024-01-24 15:40:44 en isotopes300247011isotope Forms of a chemical element having the same atomic number but different mass. An isotope is a form of a particular chemical element that shares with other forms the same number of protons in the nucleus, and thus the same atomic number and position in the periodic table, but differs from other forms in the number of neutrons, and therefore the atomic weight. isòtop isótopos 2026-03-30 20:26:10