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:


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


  • Where is the atomic number located in the isotope symbol?
    The number of protons will remain the same, regardless of the isotope This is because the protons define the elemental properties of the atom Answer and Explanation: 1 In an isotope symbol, also called nuclear notation, the atomic number is located on the lower left side, before the element symbol The number above t
  • What is the isotope symbol for cobalt-60? - Homework. Study. com
    An isotope symbol uses the chemical symbol for an element, such as Co for cobalt, and adds the mass number and the atomic number to the symbol The
  • Deuterium Symbol, Properties Uses - Study. com
    The chemical symbol for deuterium is represented by a small "2" preceding an "H " The 2 represents the atomic weight, while the H represents that deuterium is an isotope of hydrogen
  • One isotope of a metallic element has mass - Homework. Study. com
    A neutral atom has an atomic number of 14 and 16 neutrons Determine its name, symbol, mass number, number of protons, and number of electrons What isotope has 13 protons and 14 neutrons? Enter the name of the element followed by a hyphen and the mass number (e g , uranium -234) \boxed {\space} A neutral atom has 38 protons and 50 neutrons
  • Give the correct isotope symbol to identify an atom that contains 4 . . .
    Give the correct isotope symbol to identify an atom that contains 4 protons, 4 electrons, and 5 neutrons
  • What is the isotope symbol for phosphorus-32? - Homework. Study. com
    How to Write the Isotope Symbol for any Isotope: Isotopes of an element are labeled using a prescribed symbolism Answer and Explanation: 1 Become a Study com member to unlock this answer! Create your account View this answer The correct symbol for phosphorus-32 isotope is: 15 32 P For any isotope of an element the general symbolism is: Z M X w
  • The Three Isotopes of Hydrogen | Differences Properties
    What is the formula for isotopes of hydrogen? The formulas for each isotope of hydrogen include the letter "H" with the isotopes mass number added to the top left-hand corner of the symbol
  • Write the symbol for the isotope of - Homework. Study. com
    Answer to: Write the symbol for the isotope of ^ {55}Fe that contains 31 neutrons By signing up, you'll get thousands of step-by-step solutions to
  • Write the symbol for the isotope uranium-235 in the form
    Isotope Notation: Isotopes of an element are atoms that have identical atomic numbers, but have different mass numbers Therefore, their nuclei contains the same numbers of protons, but the numbers of neutrons differ within a small range Each isotope can be defined using Z A X notation The "Z" subscript is the atomic number of the element, "A" is the mass number of the particular isotope
  • Some radioisotopes used in medicine are listed below. Write the isotope . . .
    Isotope Symbol: The atom of an element has a certain number of positively charged protons, which is fixed and is represented as an atomic number in the periodic table In contrast, the number of uncharged neutrons is variable for atoms of the same element These atoms are termed isotopes and they have different masses The mass can be approximated as an integer value in atomic mass units ("amu





中文字典-英文字典  2005-2009