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...
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)。反馈 收藏
An atom has a mass number of 24 and 13 neutrons. what is the atomic number of this atom? An atom has a mass number of 25 and 13 neutrons. what is the atomic number of this atom? An atom has an atomic number of 12 and a mass number of 25. how many neutrons does t...
Atomic number:The atomic number is the number of protons found in the nucleus of an atom. It usually identifies the element itself, and shown on the periodic table with its symbol. Every element have a different atomic number. The periodic table is arranged by the atomic number, and there ...
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
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...
It is the number of an element in thePeriodic table of the elements.结果一 题目 What is the atomic number of an element?ps:Please answered in English 答案 译文,什么是元素的原子序数? It is the number of an element in thePeriodic table of the elements. 相关推荐 1 What is the atomic ...
Quantum theory provides an extremely accurate description of fundamental processes in physics. It thus seems likely that the theory is applicable beyond the, mostly microscopic, domain in which it has been tested experimentally. Here, we propose a Gedank
Atomic Structure:An atom is made up of three subatomic particles: protons, neutrons, and electrons. Inside the nucleus of an atom, the positively charged protons and the neutrally charged neutrons are found. Surrounding the nucleus are the negatively charged electrons. The b...
Atomic number: The atomic number is the number of protons found in the atom. It usually identifies the element itself, since it's unique to the specific element. Every element have different atomic number. The periodic table is arranged accordingly to the atomic number from low to high. ...