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。反馈...
The "atomic number" of an atom is equal to the number of protons it contains. The "mass number" or "atomic mass" of an atom is the sum of the number of both protons and neutrons in its nucleus What is an Atomic Number? Anatomic numberis the number ofprotonscontained within the nucleu...
The atomic number of an atom is equal to the number of protons found in the atom's nucleus. The mass number of an atom is the total number of protons and neutrons in the nucleus of the atom. Thus, the atomic number is also a contributing factor in the mass...
The combined number of protons and neutrons will determine the mass number of the atom.Answer and Explanation: The atomic number of an atom that has 6 protons, 6 neutrons, and 6 electrons would be 6. This is because the atomic number of an atom is equal to the....
What is Atomic Number and Mass Number? Atomic number and mass number are always whole numbers because they are obtained by counting whole objects (protons, neutrons, and electrons). The sum of the mass number and the atomic number for an atom (A-Z) corresponds to the total number of ...
In an electrically neutral atom, the atomic number (number of protons) is equal to the number of electrons. Why the Atomic Number Is Important The main reason the atomic number is important is because it's how you identify the element of an atom. Another big reason it matters is because ...
A. the number of protons in an atom B. the number of neutrons in an atom C. the number of electrons in an atom D. the total number of particles in an atom 相关知识点: 试题来源: 解析 A。元素的原子序数告诉我们一个原子中的质子数。原子序数等于质子数,选项 B 中子数不能由原子序数确...
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) ...
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Thus, it is the atomic number that distinguishes the atoms of one element from the atoms of the other element. The atoms of various elements are different because they have different atomic numbers. In a normal atom, the number of protons is equal to the number of electrons in it. So, ...