听力原文: What is an atom? The modern view of an atom has come from many fields of chemistry and physics. The idea of an atom came from ancient Greek science and philosophy and from the results of 18th and 19th century chemistry. It includes three aspects, concept of the atom, ...
youtubeWhat Is An Atom IB化学公开课 原子, 视频播放量 141、弹幕量 0、点赞数 2、投硬币枚数 0、收藏人数 0、转发人数 2, 视频作者 Chembond化学社, 作者简介 清华大学博士,相关视频:高中IB化学公开课 化学结构系列 What Is An Element, Mixture And Compound_ 单质 化
You can't see atoms, but they make up everything around you: your chair, your desk, the birds outside, even you! Atoms are the foundation of matter, which is everything that makes up the universe around us. Each kind of atom makes up a pure substance called an element. You may hav...
The sample of hydrogen has a mass of 1.01g,how many hydrogenatoms make up 1.01g? 2请翻译下面的英语化学题目What is the mass of one carbon atom in atomic mass unit(amu)What is the mass of one carbon atom in grams(g)What is the mass of one oxygen atom in amu?What is the mass ...
What is the wavelength (in nm) of the least energetic spectral line in the visible series of the H atom? Hydrogen Spectrum: The hydrogen is the simplest atom having only one proton and one electron. There are five series of line spectra corresponding to hydroge...
Lockyer's early research was controversial only in the sense that it was pioneering work in a new area of science. His ideas might be queried, but his investigations were based on a set of fundamental concepts shared by his fellow scientists. During the seventies, however, he began to ...
百度试题 结果1 题目What is the highest principal quantum number (n) for an electron in an atom of sulfur in the ground state? C(A)1(C)3(B)2(D)4 相关知识点: 试题来源: 解析 C 反馈 收藏
Atoms are the basic units of matter. Everything in the universe apart from energy is made of matter therefore atoms make up everything in the universe, according toNorthwestern University. The term "atom" comes from the Greek word for indivisible, because it was once thought that atoms were ...
Orbital hybridization is the intermixing of the valence shell atomic orbitals that give a new set of hybrid orbitals. The hybrid orbitals are used in bonding for effective overlapping. The hybridization state of an atom is determined by the number of bond pairs and lone pairs around that atom....
2. What is the center of an atom called?A. The electronB. The nucleusC. The neutronD. The proton 相关知识点: 试题来源: 解析 B. The nucleus 原子的中心被称为原子核。原子核由带正电的质子和不带电的中子组成,电子则在原子核周围运动。因此,正确答案是 B. The nucleus。