- The definition of an isotope is an element with similar chemical make-up and the same atomic number, but different atomic weights to another or others.
An example of an isotope is Carbon 12 to Carbon 13.
Origin of isotope; from iso- + Classical Greek topos, place: see topic
Origin of isotopeiso– + Greek topos, place (so called because the isotopes of a chemical element occupy the same position in the periodic table of elements).
Coined in 1914 by British chemist Frederick Soddy from Ancient Greek ἴσος (ísos, “equal; same”) and τόπος (tópos, “place”), because the different isotopes of a chemical element always occupy the same position in the periodic table of elements. Compare the synonymous Icelandic word samsæta.
(third-person singular simple present isotopes, present participle isotoping, simple past and past participle isotoped)
- (topology) To define or demonstrate an isotopy of (one map with another).
Possible back-formation from isotopy.
isotope - Computer Definition
One member of a family of chemical elements that has the same chemical properties (the same atomic number) but differs in mass. Isotopes have the same number of protons and electrons, but a different number of neutrons. The mass is determined by the total number of nucleons (neutrons and protons). See allotrope.