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O que (quem) é isotope effect - definição
WIKIMEDIA DISAMBIGUATION PAGE
Isotope Effect; Isotopic Effect; Isotope effect (disambiguation)
Magnetic isotope effect
WHEN A CHEMICAL REACTION INVOLVES SPIN-SELECTIVE PROCESSES, SUCH AS THE RADICAL PAIR MECHANISM
Magnetic Isotope Effect
Magnetic isotope effects arise when a chemical reaction involves spin-selective processes, such as the radical pair mechanism. The result is that some isotopes react preferentially, depending on their nuclear spin quantum number I.
isotope
![In the bottom right corner of [[J. J. Thomson]]'s photographic plate are the separate impact marks for the two isotopes of [[neon]]: neon-20 and neon-22.](https://commons.wikimedia.org/wiki/Special:FilePath/Discovery of neon isotopes.JPG?width=200 "In the bottom right corner of [[J. J. Thomson]]'s photographic plate are the separate impact marks for the two isotopes of [[neon]]: neon-20 and neon-22.")
![protium]] (<sup>1</sup>H) with zero neutrons, [[deuterium]] (<sup>2</sup>H) with one neutron, and [[tritium]] (<sup>3</sup>H) with two neutrons.](https://commons.wikimedia.org/wiki/Special:FilePath/Hydrogen Deuterium Tritium Nuclei Schmatic-en.svg?width=200 "protium]] (<sup>1</sup>H) with zero neutrons, [[deuterium]] (<sup>2</sup>H) with one neutron, and [[tritium]] (<sup>3</sup>H) with two neutrons.")
NUCLIDES HAVING THE SAME ATOMIC NUMBER BUT DIFFERENT MASS NUMBERS
Isotopes; Nuclear notation; Isotope notation; Chemical isotope; Ice otope; Isotopic notation; AZE notation; Index to isotope pages; Nuclide notation; Isotop
n. a radioactive isotope
isotope
NUCLIDES HAVING THE SAME ATOMIC NUMBER BUT DIFFERENT MASS NUMBERS
Isotopes; Nuclear notation; Isotope notation; Chemical isotope; Ice otope; Isotopic notation; AZE notation; Index to isotope pages; Nuclide notation; Isotop
['??s?t??p]
¦ noun Chemistry each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei.
Derivatives
isotopic adjective
isotopically adverb
isotopy noun ??'s?t?pi
Origin
1913: from iso- + Gk topos 'place' (because the isotopes occupy the same place in the periodic table).
Wikipédia
Isotope effect
Isotope effect may refer to:
- Equilibrium isotope effect, see Equilibrium constant#Effect of isotopic substitution
- Isotopic shift, effect of isotopic substitution on spectroscopy
- Kinetic isotope effect, effect of isotopic substitution on chemical reaction rates
- Magnetic isotope effect, when a chemical reaction involves spin-selective processes, such as the radical pair mechanism
- Superconductive transition temperature varying by isotope atomic weight: see BCS theory#Underlying evidence
