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from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A long-lived radioactive isotope of chlorine, 3617Cl, having seventeen protons and nineteen neutrons, and a half-life of 3x105 years; it can be used to date samples of groundwater


Sorry, no etymologies found.


  • Tritium, an isotope of hydrogen, and chlorine-36 were also both absent from the Naimona'nyi cores, she said.


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