valence electrons
英 [ˈvæləns ɪˈlɛktrɒnz]
美 [ˈveɪləns ɪˈlɛktrɑnz]
网络 价电子; 是价电子; 外层电子
双语例句
- Relationship between the number of average valence electrons and the critical current density of the doping MgB_2
平均价电子数与掺杂MgB2体系临界电流密度的关系 - So we have seven valence electrons.
我们有七个价电子。 - Our next step is thinking about valence electrons.
我们下一步要考虑的是价电子。 - For our step two, what we need is number of valence electrons.
我们的第二步，需要知道价电子的个数。 - So let's take boron, for example, and this has-it starts off with three valence electrons.
我们可以看一个例子，我们以硼为例，这有。 - And I want to point out the difference between core electrons and valence electrons here.
我想指出的是，核电子和价电子，之间的区别。 - The magnetic fields of the valence electrons do not cancel.
价电子的磁性没有抵消。 - I'm averaging it over the entire set of valence electrons which gives me1.91 MJ per mole.
我是在整个价电子的集合上作平均，最后得到1。91兆焦每摩尔。 - It was generally believed that in a metal the valence electrons are easily detached from the individual atoms.
一般认为，在金属中价电子容易脱离个别原子。 - How many valence electrons are in chlorine?
氯有几个价电子？ - So let's just prove that to ourselves and figure out the bond order just using valence electrons.
让我们证明一下这一点，来看看只用价电子算出键序。 - All right, so one thing that I first want to point outabout MO theory that is a big difference from Lewis structures, is that in MO theory valence electrons are de-localized over the entire molecule.
好了，对于MO理论低一点要指出的，是它和Lewis有着很大的区别，在MO理论里，价电子在整个分子里是去局域化的。 - And by now, I mean the valence electrons.
迄今为止，我指的是价电子。 - It means cooperative sharing of valence electrons.
这意味着价电子的合作共享。 - So if we talk about hydrogen, how many valence electrons are we talking about? 1.
如果我们讨论的是氢的话，它应该有多少价电子？一个。 - And, all he's done is leave the valence electrons associated.
他所做的全部是，考虑到了价电子的关系。 - And remember, we're only talking about valence electrons, so the outer-most shells.
要记得，我们讨论的只是价电子，也就是最外层的电子。 - Transition element Any chemical element with valence electrons in two shells instead of only one.
过渡元素及其化合物：价电子处在两个壳层而不是一个壳层里的任何化学元素。 - Now here is fluorine, same skeleton, only fluorine has seven valence electrons.
这是氟，同样的结构，只有氟有七个价电子。 - So, hopefully, you remember what we mean by valence electrons versus core electrons.
希望大家还记得，价电子与芯电子的定义。 - So, what if we capture all of the valence electrons.
但是如果我们捕获了所有价电子又怎样呢。 - Then it says, count all the valence electrons.
然后它说，考虑所有的价电子。 - So what we should have is8 valence electrons in our Lewis structure.
所以Lewis结构里，有8个价电子。 - The silicon atom occupies the space opening ( interstice) between the oxygen atoms and shares four valence electrons with the four oxygen atoms.
硅原子占据了氧原子之间的空隙并且和四个氧原子共用化合价。 - A Study on First-Principles of the Band Structure of Valence Electrons for Single Crystal Al
铝单晶价电子能带结构的第一性原理计算研究 - In other words, if the average energy of all the valence electrons.
换句话说，就是所有价电子的平均能量。 - So we're talking about four valence electrons for carbon.
那么碳有四个价电子。 - We actually need to think about those valence electrons.
我们需要考虑这些价电子。