And Pauli says no two electrons in a given system can have the entire set of quantum numbers identical.
而泡利认为在一个给定的系统内,没有两个电子有完全相同的量子数。
And then the potential energy, the energy is stored here due to the coulombic force of attraction between the electron and the nucleus.
然后说势能,位能其实就是,由电子和原子核之间的库仑引力而形成的能量。
So chlorine, if we talk about it in terms of electron affinity, we would be writing that we're actually gaining an electron here, and getting the ion, c l minus.
那么,氯,如果我们要讨论它的电子亲和能,我们会假设它真的得到了,一个电子而变成离子,负一价的氯。
Something like video games. So kids play video games but this model shop may continue to sell these complicated models. The next I want to show you is a sight I explore father-son relationship.
所以孩子们玩电子游戏,而这家模型店继续卖这些,复杂的模型,下面我要展示给你的是,是我探索父子关系方面的一段视频。
And that's what you want because the electron repulsion is only felt when you are in really, really close.
而那就是你想要的,因为电子间的斥力只有当它们,离得非常非常近时才能感觉得到。
Also to point out, a lot of times you'll see electron volts instead of joules, this is the conversion factor here just so you all have it in your notes.
同样也要指出,很多情况下你会看到,电子伏特而不是焦耳,这里是换算因子,你们在讲义上都能找到。
And some of them might be spinning clockwise, in which case, according to the right-hand rule we would consider them spin-down.
而另一些电子则是在顺时针自旋,在这种情况下,根据右手定理,我们会以为它是在向下转。
And the idea is that when you do these Lewis dot structures, we're representing electrons with dots, which we'll see in a minute, and each dot is going to represent a valence electron.
而当你遇到这些路易斯点结构时,我们会将电子用点来表示,我们马上就会看到,每个点都代表了一个价电子。
And, that's given by the balance between the attractive force of the ions offset by the repulsive force in the electronic shells.
而那是由,在离子的电子层之间的,引力和斥力相互抵消得到的。
And step seven is how many electrons do we have left over that are going to go into lone pairs? How many?
而第七步是我们剩下,多少电子成为孤对电子?多少?
And step four is going to have us figure out how many bonding electrons we have, so we have 16 minus 10, is going to be 6 bonding electrons.
而第四步需要判断,我们有多少个成键电子,那么我们有十六减十,也就是六个成键电子。
And the closer it gets to the nucleus the greater the amount of energy, which means that you see this in the following manner.
而电子离原子核越近,能量值就越大,这就意味着你以下面的方式看到这些。
These are all isoelectronic, they all have the same electron configuration. And we can also think about going back to atomic size for a second.
这些都是等电子的,它们都有相同的电子排布,而,我们还可以再回想一下原子尺寸的概念。
So carbon 12. We know that it has the proton number, by definition, is 6. And the neutron number, 6 from 12 is 6. So it has 6 protons and 6 neutrons.
所以碳12,我们知道它有质子数,根据定义,那就是6,而电子数,12减6等于6,所以它有6个中子。
The electrons are not equally shared and the carbon hogs the electrons a little bit more than the hydrogen, so the carbon is electron-rich and the hydrogen is just a little bit electron-deficient.
电子不是平均共享的,碳原子比氢原子吸引电子,更强烈一点点,所以碳原子是富电子,而氢原子是缺电子。
So, the father gets a Nobel Prize for showing that an electron is a particle, and the son says, well, what can I do to top that?
他的父亲因为发现电子是粒子,而拿到了诺贝尔奖,那么儿子说,好,我能做些什么超越父亲的发现呢?
And, instead of being an electronic conductor, a liquid metal, it is an ionic conductor.
而不是电子导体,液态金属是离子导体。
We'd have to figure out a way to achieve octet stability by electron transfer.
我们需要找到一个可以通过电子转移,而实现八隅体的方式。
We don't have two different species of hydrogen here, so the electrons are perfectly shared.
我们没有两个不同源的氢原子,所以电子很好的而得到了平分。
And step six asks us, well, do we have any bonding electrons left?
而第六步问我们,好,我们还有成键电子剩下吗?
We are going to say that the electron behaves as a wave.
而要说的是,电子表现像波一样。
So, we can say that -- if we have neon here and we want to think about what's isoelectronic, -- f minus would be isoelectronic. We also have oxygen -- what would the charge on oxygen be? Um-hmm, right. 2 minus.
那么,我们可以说--如果我们这里有氖原子,而我们想知道与它等电子的是什么,负一价的氟离子就是与它等电子的,我们还有氧-,氧应该是几价的?没错,负二价。
In this case, we're talking about 8 electrons, which is oxygen.
而这里,我们看到有八个电子,因此它是氧。
In case 2, we're taking the 3 p out of the neutral atom, whereas in case 3, we're taking it out of the ion.
在第二种情况中,我们要从中性原子中拿走,3,p,电子,而在第三种情况中,我们要从这个离子中拿走它。
So, Lewis structures are really a model for a way to think about what the valence electron configuration is, and as I said, it's not based on quantum mechanics, it's something that Lewis observed far, far before quantum mechanics were discovered.
路易斯结构实际上是一个用来考虑价,电子排布的模型,而就像我说的,它并不以量子力学为基础,而是路易斯在以前发现的,在量子力学出现很早前。
That's a very large number, it's all relative, so you don't necessarily know it's large without me telling you or giving you other ions to compare to, but chlorine does have a very large affinity, meaning it's really likes getting an electron and becoming a chlorine ion.
这是个非常大的数值,这种数值都是相对的,因此你不一定能知道这是非常大的,除非我告诉你或给你另外离子数值作为参考,但是氯确实有很高的电子亲和能,这意味着它非常乐意得到一个电子,而变成一个氯离子。
3 It is 1.45. Ten electrons again, 1.33.
稀有气体的离子半径为1。45,而10电子的为1。
They are all bound, hard and brittle.
电子都成键,牢固而硬脆。
And, how many non-bonding?
而孤对电子有多少呢?
I want to point out that the zero energy is defined as when you have a naked proton -- where the electron has popped out -- that's what we've defined as zero energy up to this point when we're talking about single atoms.
我想指出,这里零点能的定义,是当我们只有一个裸露的质子,而没有电子时-,到目前为止对零点能一直采用这样的定义,当我们在讨论单个原子时。
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