英文字典中文字典


英文字典中文字典51ZiDian.com



中文字典辞典   英文字典 a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   p   q   r   s   t   u   v   w   x   y   z       







请输入英文单字，中文词皆可：

radioisotope    
n. 放射性同位元素

放射性同位元元素


请选择你想看的字典辞典：
单词字典翻译
radioisotope查看　radioisotope　在百度字典中的解释百度英翻中〔查看〕
radioisotope查看　radioisotope　在Google字典中的解释Google英翻中〔查看〕
radioisotope查看　radioisotope　在Yahoo字典中的解释Yahoo英翻中〔查看〕

安装中文字典英文字典查询工具!


中文字典英文字典工具:
选择颜色:
输入中英文单字

































































英文字典中文字典相关资料:


  • Radioactive isotope | Description, Uses, Examples | Britannica
    A radioactive isotope, also known as a radioisotope, radionuclide, or radioactive nuclide, is any of several species of the same chemical element with different masses whose nuclei are unstable and dissipate excess energy by spontaneously emitting radiation in the form of alpha, beta, and gamma rays
  • Radionuclide - Wikipedia
    A radionuclide (radioactive nuclide, radioisotope or radioactive isotope) is a nuclide that is unstable and known to undergo radioactive decay into a different nuclide, which may be another radionuclide (see decay chain) or be stable
  • Radioisotopes: What Are They and How Are They Made?
    An isotope that is radioactive is called a radioisotope or radionuclide Two examples may help clarify this The most stable isotope of uranium, U-238, has an atomic number of 92 (protons) and an atomic weight of 238 (92 protons plus 146 neutrons)
  • What are Radioisotopes? | ANSTO
    The unstable nucleus of a radioisotope can occur naturally, or as a result of artificially altering the atom In some cases a nuclear reactor is used to produce radioisotopes, in others, a cyclotron
  • Radioisotopes | IAEA
    Radioisotopes are the unstable form of an element that emit radiation to transform into a more stable form Radiation is easily traceable and can cause changes in the substance it falls upon These special attributes make radioisotopes useful in medicine, industry and other areas
  • Properties of Radioactive Isotopes: An Overview
    Radioactive decay is the process in which a radioactive atom spontaneously gives off radiation This radiation is given off in the form of energy or particles to reach a more stable state It is important to distinguish between radioactive material and the radiation it gives off
  • What Is a Radioactive Isotope? Definition and Uses
    Radioactive isotopes have unstable nuclei that decay over time, releasing energy with practical uses in medicine, cancer treatment, and dating ancient materials
  • Radiation Emergency Preparedness and Response - Common Radioactive . . .
    Common Radioactive Isotopes The table below provides information about common radioactive isotopes Isotopes are forms of an element that have the same number of protons (positively charged particles) but different numbers of neutrons (neutral particles) in their nuclei
  • What Are Radioactive Isotopes? Definition and Uses
    Radioactive isotopes are unstable atoms that release energy as they decay Learn how they work and where they show up in medicine, energy, and daily life
  • Radioactive isotopes: origin, applications and risks
    Radioactive isotopes are variants of the same chemical element that have a different number of neutrons in the atomic nucleus This means that they have the same number of protons in their nucleus, which determines their chemical identity, but they differ in the number of neutrons present





中文字典-英文字典  2005-2009