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
百度试题 结果1 题目What is the atomic number of an element?ps:Please answered in English 相关知识点: 试题来源: 解析 最佳答案译文,什么是元素的原子序数?It is the number of an element in thePeriodic table of the elements.反馈 收藏
The atomic number of an element is equal to the number of 02:08 Neutron was discovered by 00:56 Which of the following is a nucleon? 01:18 The mass number of a nucleus is equal to the number of 01:55 The nucleus of an atom is composed of 01:45 Nuclear forces exists between 03:...
The atomic number of an element represents the number of electrons or the number of protons in the element while the atomic mass represents the sum of neutrons and protons that exist in the element. Answer and Explanation:
The atomic number of an element represents the number of protons presents in the nucleus. The symbol of atomic number isZ If the element is... Learn more about this topic: What is an Atom? - Lesson for Kids from Chapter 6/ Lesson 1 ...
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...
1 The relative atomic mass of an element is always D A the mass of an atom of the element relative to z the mass of a carbon-12 atom. B the mass of an atom of the element relative to the mass of a hydrogen atom.□ C the weighted mean mass of an atom of the element relative ...
The atomic number of a chemical element is the number of protons found in the nucleus of every atom of that element. The atomic number uniquely identifies a chemical element. It is identical to the charge number of the nucleus. In an uncharged atom, the ...
The beta decay is the decay of electron or positron from a radioactive nucleus. The atomic number of an atom is the number of protons present in the nucleus and the mass number is the total number of protons and neutrons present in the nucleus....
The Atomic Number:The atomic number is the number of protons found in the nucleus of an atom. The atomic number is unique to the specific element. Every element have different atomic number. The periodic table is arranged by the atomic number....