So in the case of boron here, what we're starting with is the ion, and now we're going to pull one more electron out.
那么在硼的情况下,我们应该从这个离子开始,现在我们要再拿走一个电子。
All right. So let's think about how to draw the oh, actually, let me let you tell me how we should start this Lewis structure.
好,那么我们来想一想应该怎么画,噢,实际上,我想让大家来告诉我,我们应该怎么开始画这个路易斯结构。
We need to think about solutions to this, right from the start of the class, and we already talked about something.
从一上课开始,我们就应该开始,思考这些问题解决方案,现在我们已经谈论了一些了
OK. You can see that thing is cutting down the problem in half each time, which is good, but there's one more thing I need to deal with.
这很棒,但是我们还需要处理另外一件事情,让我们仔细来看看,我在开始做之前一直在说,应该先试验试验。
But at least at the beginning, when we approach the book, we should stay on its surface, not dig at least initially too deeply.
但至少在一开始,当我们着手阅读时,我们应该要停驻于其表面,不要一开始就深探。
We could begin to put a certain amount of pressure on the text and possibly, as I say, - begin to do things with it which are kind of a five-finger exercise-- -- we'll be doing a lot more of that sort of thing--but which might work.
开始时我们应该对文本抱有一定的怀疑,就像我说的,用一种五指练习法来做-,以后我们会大量涉及到这种练习。
What's the--Let's go back or I guess we're going to go to the beginning.
什么是,我们回头,我觉得我们或者应该从头开始
So with that said, let's write our first program.
照这么说来,我们应该开始写第一个程序了。
So in terms of nitrogen that starts off with a valence number of 5, again we have 2 lone pair electrons in the nitrogen, and again, we have 6 electrons that are shared.
对于氮来说,我们应该从五个价电子开始,同样,氮也有两个孤对电子,共用电子的个数也一样,是六个。
And so we can actually think about how do we calculate what the dissociation energy should be for h 2, so let's go ahead and do this.
因此,我们其实可以想到应该如何计算,氢分子的离解能,那么我们开始做一下吧。
应用推荐