| 释义 |
valence electrons短语⁷¹⁶⁵¹
基本英英例句
化价电子原型valenceelectron的复数
名词 valence electron:
an electron in the outer shell of an atom which can combine with other atoms to form molecules And, these outer shell electrons are termed valence electrons.
这些外层电子被,称作价电子。163
And by now, I mean the valence electrons.
迄今为止，我指的是价电子。163
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。163
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。163
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。163
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。163
But here we're going to add1, so again, we have10 valence electrons.
但是这里我们要加上一个，那么跟刚才一样，我们有十个价电子。163
For example, we can talk about nitrogen, and nitrogen has five valence electrons shown here.
例如，我们可以讨论氮原子，氮原子有5个价电子。163
For the carbon, we start with4 valence electrons, we have 0 lone pair electrons minus4, and we end up with a formal charge of 0.
对于碳，我们从四个价电子开始，我们有零个孤对电子，再减去四，最终我们有零个形式电荷。163
How many valence electrons are in chlorine?
氯有几个价电子？163
How many valence electrons do we have left?
我们还剩下多少个价电子？163
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。163
It means cooperative sharing of valence electrons.
这意味着价电子的合作共享。163
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。163
Our next step is thinking about valence electrons.
我们下一步要考虑的是价电子。163
So we have seven valence electrons.
我们有七个价电子。163
So, in this case, we're just drawing the molecular orbital diagram for the valence electrons, so we have three for each.
所以在这个例子里面，我们只需要画出,价电子的分子轨道图，所以每个有3个电子。163
So, seven asks us if we have any valence electrons left, and how many valence electrons do we have left?
那么，第七步问我们是否还有价电子剩下，我们剩下了几个价电子？163
So we need to add those2 valence electrons left as lone pair electrons in our structure.
因此我们需要将这两个剩下的价电子,作为孤对电子加到我们的结构中。163
Then it says, count all the valence electrons.
然后它说，考虑所有的价电子。163
We actually need to think about those valence electrons.
我们需要考虑这些价电子。163
We told you that phosphorous has5 valence electrons plus3 from each of the hydrogens, so we have a total of8 valence electrons.
我告诉过你们磷有5个价电子,另外氢有3个，所以我们一共有8个价电子。163 |