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unstable isotope

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unstable isotope [¦ən′stā·bəl ′ī·sə‚tōp]
(nuclear physics)
radioisotope


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Recent improvements in detector sensitivity have enabled the researchers to detect proton radioactivity among certain unstable isotopes of elements containing between 55 and 69 protons.
Deformed nuclei spit out protons by Science News
The unstable isotope, carbon-14, is produced continuously in the upper atmosphere, mostly by the interaction of cosmic rays with nitrogen.
Accelerator mass spectrometry; tracking carbon in the marine ... by Schneider, Robert J.; Jones, Glenn A, / Oceanus
During the 5 decades since the discovery of nuclear fission, physicists have identified more than 400 unstable isotopes among fragments produced by the splitting of uranium nuclei.
Uranium fission spawns exotic nuclei by Peterson, Ivars / Science News
 
 
 
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