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。
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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 ...
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 试题上传试题纠错猜您对下面的试题感兴趣:点击查看更多与本题相关的试题同位素是() A. 原子序数相同,但质量数不同 B. 原子序数...
Accordingly, the number of protons, which is always equal to the number of electrons in the neutral atom, is also the atomic number. An atom of iron has 26 protons in its nucleus; therefore, the atomic number of iron is 26 and its ranking on the periodic table of chemical elements is ...
Discovery of the elements with atomic number greater than or equal to 113. R.C. Barber,P.J. Karol,H. Nakahara,E. Vardaci,E.W. Vogt. Pure and Applied Chemistry . 2011Barber, Robert C.; Karol, Paul J; Nakahara, Hiromichi; Vardaci, Emanuele; Vogt, Erich W. (2011). "Discovery of ...
The atomic number of an element is equal to the number of protons in its nucleus. In a neutral atom, the number of protons equals the number of electrons in shells which is the energy level around the nucleus. Isotopes are atoms with the same atomic number but distinct neutron numbers, ...
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 © ...
Avogadro's Number This is the number ofatomsin a 12g sample ofcarbon-12 (C12). This is equal to 6.0221367E23atoms. It is named for Italian chemist Amadeo Avogadro (1776-1856) who first stated the principle in 1811. Azimuthal Quantum Number (angular momentum quantum number) ...
In chemistry, an atomic mass unit or AMU is a physical constant equal to one-twelfth of themassof an unboundatomofcarbon-12. It is a unit ofmassused to expressatomic massesandmolecular masses. When the mass is expressed in AMU, it roughly reflects the sum of the number of protons and ...