The element with atomic number 14 is? A. Silicon B. Phosphorus C. Sulfur D. Chlorine 相关知识点: 试题来源: 解析 A。解析:原子序数为 14 的元素是硅元素。磷元素原子序数为 15,硫元素原子序数为 16,氯元素原子序数为 17。所以答案是 A。
What is the abbreviation for silicon? A. Si B. Sy C. Sg D. Sn 相关知识点: 试题来源: 解析 A。硅元素的英文是 silicon,其缩写形式是 Si。选项 B“Sy”不是硅元素的缩写;选项 C“Sg”一般不是任何化学元素的缩写;选项 D“Sn”是锡元素的缩写。反馈 收藏 ...
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)...
To determine the block, group number, period, and outer shell electronic configuration of the element with atomic number 107, we can follow these steps:Step 1: Identify the nearest noble gas The atomic number of the element is
【题目】ElementXisametalwithatomicnumberof 47 andhasanelectronicconfiguration 2,8,18,z,2.a)Givethevalueofzinthecon figurationofmetalXb)DescribethestructureandbondinginmetalXwiththehelpofadiagram.c)Xreactswithchlorineto formachloridewith formulaXCl.StatethetypeofbondingandstructureinXCl.d)Account forthe...
百度试题 题目An element is a substance all of _ atoms have the same atomic number. A.thatB.whoseC.whatD.which相关知识点: 试题来源: 解析 B 反馈 收藏
那么有可能就是发现了一种新元素 或者实验错误）讲的繁琐一点就是 there have been atomic numbers[←我觉得应该要有s], and there's no known element for such atomic numbers.atomic number和element之间介词用for 在这个which的定语从句里面 就把介词放到which之前 希望帮到你哟 有问题就追问吧 ...
(2010). Name and symbol of the element with atomic number 112 (IUPAC recommendations 2010). Pure and Applied Chemistry, 82(3), 753- 755.Corish, J., and Rosenblatt, G. M. (2003). Name and symbol of the elements with atomic number 10 (IUPAC Recommendations 2003), Pure Appl. Chem.;...
Synthesis of a New Element with Atomic Number Z=117 The discovery of a new chemical element with atomic number Z=117 is reported. The isotopes (293)117 and (294)117 were produced in fusion reactions between ... TO Yu,FS Abdullin,PD Bailey,... - 《Physical Review Letters》...
Pure silicon is too reactive to be found in nature, but it is found in practically allrocksas well as insand,clays, andsoils, combined either with oxygen as silica (SiO2, silicon dioxide) or with oxygen and other elements (e.g.,aluminum,magnesium,calcium,sodium, potassium, or iron) assi...