Definition Of Isotopes In Chemistry
In addition to protons the atoms of nearly every element also contain neutrons.
Definition of isotopes in chemistry. There are 275 isotopes of the 81 stable elements in addition to over 800 radioactive isotopes and every element has known isotopic forms. An atom is first identified and labeled according to the number of protons in its nucleus. For example an atom with 6 protons must be carbon and an atom with 92 protons must be uranium. Isotope definition any of two or more forms of a chemical element having the same number of protons in the nucleus or the same atomic number but having different numbers of neutrons in the nucleus or different atomic weights.
The mass of a neutron is almost. Every chemical element has one or more isotopes. Elements are defined by the number of protons in the atomic nucleus. Isotopes are different forms of a single element.