百度试题 结果1 题目The atomic number of an element represents the number of ___. A. protons B. neutrons C. electrons D. protons and neutrons 相关知识点: 试题来源: 解析 A。元素的原子序数代表质子数(protons)。
The first is the atomic number.MYSTAKIDIS CHRISTOS
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几道英语化学题!1.how are the atomic numbers and the atomic masses of the elements related to how the elements are arranged on the periodic table?2.how does the number of electrons relate to the arrangement what is the different in the number o
The atomic number (原子序数) is equal to the number of electrons per atom or, what is equivalent, the number of protons (质子) per nucleus.相关知识点: 阅读 文言文阅读 文言题类 文言文阅读——翻译 试题来源: 解析 [答案]原子序数等于每个原子的电子数或者相当于每个原子核的质子数。
atomic number 1.Or proton number (Z) The number of protons in the nucleus of an atom. If not electrically charged, this is equal to the number of electrons in its shells. 2.The number of protons in the nucleus of an atom. Dictionary of Unfamiliar Words by Diagram Group Copyright © ...
THEATOMICNUMBER(原子序数)ISEQUALTOTHENUMBEROFELECTRONS The atomic number (原子序数) is equal to the number of electrons per atom or, what is equivalent, the number of protons (质子) per nucleus.正确答案 点击免费查看答案 试题上传试题纠错...
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If you know the atomic number and the mass number of an isotope of an element, how can you determine the number of protons and neutrons? Answer and Explanation: The atomic number is equal to the number of protons in an atom. For ...
atomic number. You will remember that the atomic number is the number of protons (= very very small pieces of matter that carry positive or Å electricity) in the nucleus or centre of an atom, and this number determines or decides the nature of the element. Each oxyge...