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
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...
An element A atomic number 7 mass number 14 B electronic configura... 06:49 Rutherford's alpha-particle scattering experiment discovered 02:24 Number of valence electrons in O^(2-) is : 02:01 Which of the following is the correct electronic configuration of pota... 01:39 The mass number...
III.The atomic number of element is equal to the number of neutron(s)in a neutral atomIV.Electron configuration of an atom determine the physical and chemical propertiesChoose the correct statement Aonly I BI and III CI,II and IV DII,III,and IvSubmit The atomic number of element Unq is ...
Answer to: What does the atomic number of an element represent? Atomic Numbers If you look at a periodic table of the elements, you will notice that each element has a number in the top-left corner of its box. This is the atomic number for the element. ...
解析 首先句子后面是作定语的,由主句可以知道,修饰的是主语element.因为atoms是原子的意思,对于元素来说,逻辑关系自然是“元素里的原子”,所以element和atoms具有从属关系,用whose(注意啦!在定语从句表示从属关系的时候,关系词whose不仅仅适用于人,也可以适用于物)...
34 An element has an atomic number of 4.Which statement about this element is correct? A A It forms ions by losing electrons. B It has four occupied electron shells in each of its atoms. C It is an unreactive gas at room temperature and pressure. D It is found in Group IV of the...
'Properties of elements are a periodic function of their atomic number.' Let us recall that the atomic number gives us the number of protons in the nucleus of an atom and this number increases by one in going from one element to the next. Elements, when arranged in order of increasing at...
In a neutral atom, the number of protons is equal to the number of electrons. Therefore, the total number of protons and electrons is:Total=Z+Z=2Z=2×15=30 Final Answer:The total number of protons and electrons in one atom of element X is a=30. --- Show More ...
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