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...
A. The number of protons B. The number of neutrons C. The number of electrons D. The sum of protons and neutrons 相关知识点: 试题来源: 解析 A。原子序数由质子数决定。选项 A 正确,原子序数等于质子数。选项 B 中子数不能决定原子序数。选项 C 电子数在原子呈电中性时等于质子数,但不是决定原...
Atomic number (the number of protons in the nucleus), not atomic mass number (the number of protons and neutrons), determines chemical behavior. 是原子序数(原子核中质子的数量)而不是原子的质量决定化学特性。 全句 We now know that atomic number (the number of protons in the nucleus), not...
网络原子数;原子序号;原子量 复数:atomic numbers 权威英汉双解 英汉 英英 网络释义 atomic-number n. 1. 原子序数(指原子在元素周期表中的序号)the number of protons in the nucleus (= centre) of an atom, which is characteristic of a chemical element. Elements are placed in the periodic table acco...
Atomic number, the number of a chemical element in the periodic system, whereby the elements are arranged in order of increasing number of protons in the nucleus. Accordingly, the number of protons, which is always equal to the number of electrons in a n
Boron: Semimetallic chemical element, chemical symbol B,atomic number5. 硼: 半金属的化学元素, 化学符号b, 原子序数5. 期刊摘选 展开全部 英英释义 Noun 1. the order of an element in Mendeleyev's table of the elements; equal to the number of protons in the nucleus or electrons in the neutral...
The element whose atomic number is 6 is _. A. Carbon B. Calcium C. Cobalt D. Copper 相关知识点: 试题来源: 解析 A。解析:原子序数为6的元素是Carbon(碳)。B选项Calcium(钙)原子序数为20;C选项Cobalt(钴)原子序数为27;D选项Copper(铜)原子序数为29,所以答案为A。
Atomic mass unit (AMU), in physics and chemistry, a unit for expressing masses of atoms, molecules, or subatomic particles. An atomic mass unit is equal to 1 12 the mass of a single atom of carbon-12, the most abundant isotope of carbon, or 1.660538921
Define atomic number 96. atomic number 96 synonyms, atomic number 96 pronunciation, atomic number 96 translation, English dictionary definition of atomic number 96. Noun 1. atomic number 96 - a radioactive transuranic metallic element; produced by bombar