artificial isotopeの例文

例文

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1. When the age-dating researchers bombard potassium-40 with neutrons, they can create an artificial isotope of argon called argon-39.
2. Twenty-eight artificial isotopes of zirconium have been synthesized, ranging in atomic mass from 78 to 110 . positron emission.
3. The artificial isotope reactivity ( the number of neutrons per fission that go on to fission other atoms of nuclear fuel ).
4. The stablest artificial isotope is indium-111, with a half-life of approximately 2.8 days . All other isotopes have half-lives shorter than 5 hours.
5. Many elements have both natural and artificial isotopes ( e . g . hydrogen has three natural isotopes and another four known artificial isotopes ).