| 词汇 | example_english_radioactive-atom |
| 释义 | radioactive atomcollocation in Englishmeanings of radioactiveand atomThese words are often used together. Click on the links below to explore the meanings. Or, see other collocations with atom. radioactive adjective uk /ˌreɪ.di.əʊˈæk.tɪv/ us /ˌreɪ.di.oʊˈæk.tɪv/ having or producing powerful and dangerous energy that comes from the breaking up ... See more at radioactive atom noun[C] uk /ˈæt.əm/ us /ˈæt̬.əm/ the smallest unit of any chemical element, consisting of a positive nucleus surrounded by negative electrons. Atoms can combine to form ... See more at atom Examples of radioactive atomThese examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. In other words, the "probability" of a radioactiveatom decaying within its half-life is 50%. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. At the top is a radioactiveatom which envelops a man in smoke. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Thus, in an internal conversion process, a high-energy electron is emitted from the radioactiveatom, but not from a nucleon in the nucleus. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The radioactiveatom supplies a signal that can be monitored. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Environmental scientists use radioactive atoms, known as tracer atoms, to identify the pathways taken by pollutants through the environment. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Glucose can be labeled with either stable or radioactive atoms. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Only a fraction of the radioactive atoms can be ionized before decay or extraction. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. For example, if there are 3 radioactive atoms with a half-life of one second, there will not be 1.5 atoms left after one second. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Thus, gamma photoelectric-effect electron emission may "also" cause high-speed electrons to be emitted from radioactive atoms without beta decay. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The positron emitting radioisotopes used are produced by a cyclotron, and chemicals are labeled with these radioactive atoms. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The production and formation of these radioactive atoms into an ionic beam for study is an entire field of research carried out at many laboratories throughout the world. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. Want to learn more? Go to the definition of radioactive Go to the definition of atom See other collocations with atom |
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