"But I think,as Americans look up today, what they see is a big government takeover of health care that is on the table and a plan that,frankly, they do not support,".

VOA: standard.2009.07.23

Well, if we look on the chart, the first ionization energy is what is reported in your Periodic Table.

如果我们查阅图表，一级电离能,已经在元素周期表上标示了。

麻省理工公开课 - 固态化学导论课程节选

I thought, well, maybe we can now go to the Periodic Table and figure out what is going on there.

那么接下来，我们可以讲元素周期表了吧,让我们看一下在这儿我们又会遇到什么问题。

麻省理工公开课 - 固态化学导论课程节选

Depending on what kind of chemistry you go in to, you might accidentally memorize parts of the table, which is fine, but what you really want to know how to do is know how to use the periodic table.

取决于你今后从事哪个方向的化学研究，你可能会不经意地记住周期表的某一部分，这就够了，但是要注意,你真正需要知道的是如何使用元素周期表。

麻省理工公开课 - 化学原理课程节选

It's a little distracting using the cups since they don't fit on table and also, you can't see what they previously looked like.

在这儿并不太适合再用杯子,因为你们不能看到它之前是什么样的。

哈佛公开课 - 计算机科学课程节选

So this is my grades on the left hand table, but now let's look at what my pair will do, what my pair will get.

我的成绩写在左边的表格里,我们再看看我对手,她会得到什么成绩

耶鲁公开课 - 博弈论课程节选

Or suffer a heart attack and be on the operating table for some number of hours and then, thanks to cardiac surgery or what have you,be resuscitated.

或是心脏病发，在手术室里经历数小时，最终被心脏外科医生救回来。

耶鲁公开课 - 死亡课程节选

Let me start out by putting what I think is a relatively controversial proposition on the table and that's that this investment management business, when stripped down to its bare essentials, is really quite simple.

让我从一个,相对争议的话题开始,投资管理业务,当剥离种种表象追溯到其本质时,其实非常简单

耶鲁公开课 - 金融市场课程节选

And this is the same periodic table that you're going to get in your exams, so it's good to practice doing your problem-sets with that periodic table so you're not relying on having the double check right there of seeing what the electron configuration is.

这也是你们考试时会用到的相同的表,这样你们就不会，所以使用周期表来做问题集,是很好的练习,这样你们就,不会依赖于再次确认,电子构型是什么了。

麻省理工公开课 - 化学原理课程节选

We need to add something else in order to explain what is going on in the Periodic Table.

我们需要引其他一些东西进来才能解释清楚,元素周期表中发生的这种现象。

麻省理工公开课 - 固态化学导论课程节选

So if you flip the info page over on the back here, what you'll see is the periodic table, this is the same one that I've handed out in the last two lectures - the periodic table without any electron configurations.

将这张纸翻过来，你可以看到一个元素周期表，这与我们前两次课发过的,是一样的,-没有任何电子排布的周期表。

麻省理工公开课 - 化学原理课程节选

Anyway, if you go to your Periodic Table you will find that on the one side you can get what is called the enthalpy of atomization.

如果你看元素周期表,你会在这一侧发现,这是原子化焓。

麻省理工公开课 - 固态化学导论课程节选

Often what you'll see is not a table based on this definition, but something that's called the Pauling definition of electronegativity, but it's exactly the same idea and the same trend as this more numerical way to think about what the meaning of electronegativity is.

通常你看到的表格一般都不是基于这种定义的，而是基于,鲍林定义的电负性，但在意义上是相同的，并且满足同样的周期性规律,当和这种这种更数值化地理解电负性的定义,作对比时。

麻省理工公开课 - 化学原理课程节选

And that's all that's big enough to pass through or small enough to pass through. And if we go up even just one row on the periodic table to potassium, what we actually see is now that it's going to be too large, and, in fact, a potassium solvated with one water molecule won't go through our channel.

就是这样刚好大到它通过,或者说刚好小到它通过,即使我们再沿着周期表往下走仅仅一行到钾离子，我们看到的就将是它的个头太大了，实际上，溶解于一个水分子的单个钾离子,不能穿过我们的通道。

麻省理工公开课 - 化学原理课程节选

And now we can rationalize what is going on in the Periodic Table.

现在我们能合理解释,元素周期表上的东西了。

麻省理工公开课 - 固态化学导论课程节选

And we know as we go across a row in the periodic table, what's happening is that z effective or the effective pull on the nucleus is increasing.

而我们知道沿着周期表的某一行向右看，有效核电量,或者说原子核的有效引力是在逐渐增大的。

麻省理工公开课 - 化学原理课程节选

So basically, at the time he was just going on size and then traits, but what we actually know today is that we can also order things in the periodic table by electron configuration.

基本上，在当时他只能通过大小,和特性来进行，但是现在我们已经知道了,我们还可以通过电子排布来对它们进行排序。

麻省理工公开课 - 化学原理课程节选

So if we consider lithium, potassium, and sodium, they're all together in the same group on the periodic table, knowing what we do about biology we can immediately think of sodium and potassium, or even just knowing what you know about table salt, for example, that these are two elements that we find, and particularly in the ion form in very high concentrations in our body.

我们来考虑一下锂，钾和钠，它们都在周期表中的同一族里，想要知道我们将元素周期律,用到生物学会怎么样，我们首先想到的就是钠和钾，甚至只需要知道食盐，我们发现它们是以很高浓度的离子形式,存在于我们体内的两种元素。

麻省理工公开课 - 化学原理课程节选