Isotope | Examples Definition | Britannica An isotope is one of two or more species of atoms of a chemical element with the same atomic number and position in the periodic table and nearly identical chemical behavior but with different atomic masses and physical properties
Radioactive isotope | Description, Uses, Examples | Britannica A radioactive isotope, also known as a radioisotope, radionuclide, or radioactive nuclide, is any of several species of the same chemical element with different masses whose nuclei are unstable and dissipate excess energy by spontaneously emitting radiation in the form of alpha, beta, and gamma rays Every chemical element has one or more
Isotope - Discovery, Radioactivity, Elements | Britannica Isotope - Discovery, Radioactivity, Elements: Evidence for the existence of isotopes emerged from two independent lines of research, the first being the study of radioactivity
Atom - Mass, Isotopes, Structure | Britannica All chemical elements have many isotopes It is usual to characterize different isotopes by giving the sum of the number of protons and neutrons in the nucleus—a quantity called the atomic mass number
What are isotopes and how do they work? - Encyclopedia Britannica Isotopes are atoms of the same element, meaning they have the same number of protons and electrons but that have different numbers of neutrons The different numbers of neutrons give isotopes different masses
Isotope - Atomic, Radioactive, Stable | Britannica Isotope - Atomic, Radioactive, Stable: The composition of any object can be given as a set of elemental and isotopic abundances One may speak, for example, of the composition of the ocean, the solar system, or indeed the Galaxy in terms of its respective elemental and isotopic abundances
isotope - Students | Britannica Kids | Homework Help An isotope is one of two or more types of atoms of a chemical element with the same number of protons but with different numbers of neutrons and therefore different atomic masses Every chemical element has one or more isotopes
Isotopic abundance | chemistry | Britannica In isotope: Elemental and isotopic abundances The composition of any object can be given as a set of elemental and isotopic abundances One may speak, for example, of the composition of the ocean, the solar system, or indeed the Galaxy in terms of its respective elemental and isotopic abundances … Read More; chemical elements
Isotope - Separation, Enrichment, Radioactive | Britannica Isotope - Separation, Enrichment, Radioactive: Most elements are found as mixtures of several isotopes For certain applications in industry, medicine, and science, samples enriched in one particular isotope are needed Many methods have therefore been developed to separate the isotopes of an element from one another
isotope summary | Britannica isotope , One of two or more species of atoms of a chemical element having nuclei with the same number of protons but different numbers of neutrons They have the same atomic number and hence nearly identical chemical behaviour but different atomic masses