As a first example, we shall examine the hydrogen atom and hydrogen-like atoms. It should be noted that the hydrogen atom is not only an important historical contribution to theoretical chemistry. As we shall see later, a substantial number of the qualitative and quantitative concepts that are ...
【答案】consistsof【核心词汇】molecule 分子;atom 原子【翻译】一个水分子由两个氢原子和一个氧原子组成。【解析】本题考查同义词组转换。根据句意,一个水分子由两个氢原子和一个氧原子组成。makeupof 由...组成,consistof 由...组成,因为主语是A moleculeofwater 一个水分子,所以谓语动词要用第三人称单数形...
所属专辑:一点英语 之 每天一句 音频列表 1 fruitlessly fished for hours 67 2021-01 2 hydrogen atoms ,oxygen atom,molecule 118 2021-01 3 a rabbit in the bush 84 2021-01 4 is equipped with a projector, presentati 85 2021-01 5 To help with revitalization ...
49. A molecule of water is made up of two atoms of hydrogen and one atom of oxygen.(改为同义句) A molecule of water ___ ___ two atoms of hydrogen and one atom of oxygen. 相关知识点: 试题来源: 解析 【答案】consistsof【核心短语/词汇】bemadeupof 由...组成【翻译】一个水分子是由...
Berthollet, Davy,andGayLussacall expressed doubts at one time or another as to whether there really was a singleuniqueacidifyingprinciple. 贝托莱、戴维和盖·吕萨克都曾一度对是否真的存在一种独特的酸化原理表示怀疑。 Davy, in his original work on HCl, suggested that chlorine, being electronegative ...
Fig. 1.1. The structure of hydrogen atom. The hydrogen atom can be represented by the symbol H and a dot that stands for the single electron in the neutral atom. In its lowest energy form, the electron occupies the 1s orbital, spherically symmetrical around the hydrogen nucleus. In the sec...
Hydrogen Atom In subject area: Chemistry Water is a molecule composed of hydrogen and oxygen atoms. From: Medical Imaging Technology, 2014 About this pageSet alert Also in subject areas: Earth and Planetary Sciences MathematicsDiscover other topics On this page Definition Chapters and Articles ...
DOi=1,NmaxcycBuildnewFSolvingFC=SCE′toobtainenergyandPnewP=Pnew The method of solving of generalized eigenvalue problem is the same as what is used in H-F for He atom: zhuanlan.zhihu.com/p/46 And with the classical Coulomb repulsion between two hydrogen nucleus, we have: E=12[∑rs...
The hydrogen atom is the simplest and lightest of all the elements. As the molecule, H2, hydrogen is an odourless, colourless gas with a density one-fourteenth that of air. To condense the molecule to a denser liquid, the temperature must be reduced to 20.3 K. When hydrogen is released,...
Hydrogen bonding is the attractive interaction that occurs between a hydrogen atom bound in a molecule to an electronegative atom such as oxygen or nitrogen and another electronegative atom from a different molecule (intermolecular) or even from the same molecule (intramolecular). ...