And we give different names, depending on what kind of electrons we're dealing with, so, for example, with h c l here, we can talk about having bonded versus lone pair electrons.
我们还起了不同的名字,给我们要处理的不同类型的电子,以氯化氢为例,我们来介绍一下成键电子与孤对电子。
So our skeleton tells us that carbon is in the middle, so we'll put the h on one side, and the n on the other side there.
我们的骨架告诉我们碳原子应该放在中间,因此我们把氢原子放在一边,把氮原子放在另外一边。
Why didn't they keep right on going with G, H, I, J, K, L, M, N, O, P?
为什么他们不接着写下去呢,按照字母表
include cs50 h But this says include and this says include a file called cs50.h that lives in some special place on the server that the cs50 staff wrote.
这里写在,众所周知,cs50,h是由CS50的员工,编写的一个库文件。
We're just going to go through it and execute it a little bit. And then we'll move on and talk about how we'd actually make some of these measurements of delta H and compare
对吧?我们会讲完它并,实际应用一下,然后我们会,继续讲一下实际上我们,是怎样测量△H并与
So it looks a lot less messy if we just draw our Lewis structure like this for h c n, where we have h bonded to c triple bonded to n, and then a lone pair on the nitrogen there.
这看起来整洁了不少,如果我们把氰化氢的路易斯结构画成这样的话,这样我们就有氢与碳之间的单键和碳与氮之间三键,然后还有一对孤对电子在氮这里。
And the last thing we can think about is how do we name this n h bond, and again, we just name it based on it symmetry.
最后我们要讨论的是,如何命名这个NH键,同样,我们基于它的对称性命名它。
应用推荐