How to Use isotope in a Sentence

isotope

noun

• The team measured isotopes in quartz to date the soil to 1.4 million years old.
  — Will Sullivan, Smithsonian Magazine, 7 Mar. 2024
• These isotopes were dated to the same era, around 1.7 to 3.2 million years ago.
  — Christian Thorsberg, Smithsonian Magazine, 14 June 2024
• This was the first case of an isotope with two different half-lives.
  — Artemis Spyrou, The Conversation, 24 May 2022
• The day of remembrance is, in its own way, an isotope of that openness.
  — Sarah Scoles, Scientific American, 27 Jan. 2022
• But that’s where a radioactive isotope called carbon-14 may be able to help.
  — Daniel Oberhaus, Wired, 31 Aug. 2020
• This sodium-39 was the most massive isotope of sodium known to exist.
  — Wired, 22 Nov. 2019
• An isotope of silicon, such as silicon-29, does have a spin.
  — IEEE Spectrum, 15 June 2024
• Once the isotopes were prepared and the cyclotron was running, the process became a waiting game.
  — Max Springer, Scientific American, 24 July 2024
• By matching the isotope profiles in the tusk with the isotopes in the current landscape, the researchers could track where the mammoth ate over the years.
  — Sara Harrison, Wired, 12 Aug. 2021
• After the tusk was cut in half, the scientists used a laser to knock off specks along the length of it for isotope analysis.
  — New York Times, 12 Aug. 2021
• The most common isotope, carbon-12, is also the lightest.
  — Kate Baggaley, Popular Science, 21 Aug. 2020
• The closest isotope matches were for West Africa and Europe.
  — Marta Musso, WIRED, 5 July 2024
• The isotopes analyzed were mostly from young goats and pigs.
  — Elizabeth Rayne, Ars Technica, 6 July 2024
• Many of the above radioactive isotopes were released into the ocean at the time of the disaster in 2011—and some traveled.
  — Chris Baraniuk, WIRED, 18 July 2023
• In the isotope lab, the scientists found the fingerprints of water that nourished the plants for thousands of years.
  — Ned Rozell, Anchorage Daily News, 26 Sep. 2020
• The team also used ancient DNA from 25 of the bones to refine the results of their isotope analysis.
  — Zach Zorich, Discover Magazine, 10 Feb. 2021
• The second was the fraction of oxygen that was from a specific isotope (18O).
  — John Timmer, Ars Technica, 11 Aug. 2022
• So, the researchers focused on a single type of proxy: the ratio of oxygen isotopes found in the shells of sea organisms.
  — John Timmer, Ars Technica, 20 Sep. 2024
• Harmful isotopes were carried by the winds as far as Ireland within a week.
  — The Economist, 4 June 2019
• Helium-3 is a non-radioactive isotope that could be used for power.
  — Fox News, 28 Sep. 2019
• When analyzing the samples, the team found that the soils were highly depleted of the isotope carbon-13.
  — Elizabeth Gamillo, Smithsonian Magazine, 18 Jan. 2022
• Female mice were fed chow containing the isotope, then mated with a male mouse.
  — San Diego Union-Tribune, 6 June 2019
• That makes enamel the gold standard in terms of preserving isotopes.
  — Jennifer Ouellette, Ars Technica, 6 Aug. 2019
• Meanwhile Wooller and his colleagues were looking at the strontium and other isotopes in Kik’s tusk.
  — Richard Grant, Smithsonian Magazine, 24 Oct. 2023
• The radioactive isotope spike may reflect a surge in the number of cosmic rays bombarding Earth when the rings formed.
  — Gemma Tarlach, Discover Magazine, 17 Apr. 2020
• The researchers also measured isotopes of carbon that can tell you about what life was doing.
  — Scott K. Johnson, Ars Technica, 24 Oct. 2019
• As the iron isotope accumulates, the rest of the star dies away, and the presence of the iron then continues to choke out the remaining elements.
  — Caroline Delbert, Popular Mechanics, 24 Aug. 2020
• The imaging was done using a rare and stable isotope of nitrogen, N15.
  — San Diego Union-Tribune, 6 June 2019
• Therefore, the ratios of these isotopes forms a record of the Martian climate that includes temperature and acidity of the water, and the composition of the water and the atmosphere.
  — David Szondy, New Atlas, 8 Oct. 2024
• These xenon isotopes differ substantially in their nuclear spin; some have zero spin and others 1/2 or 3/2.
  — Hartmut Neven, Scientific American, 8 Aug. 2024

Last Updated: 13 Nov 2024