Isotope: nm (word coming from iso- and from the Greek topos “place, place”, according to English)
An isotope designates each of the atoms (of an element) which have the same number of protons and a determined number of neutrons.
The three isotopes 12, 13 and 14 of carbon, denoted 12C, 13C and 14C.
Stable isotopes.
Separation of isotopes by centrifugation, by mass spectrometry, thanks to the isotron.
Radioactive isotopes (radioisotope)....
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