It's a — it's the periodic table of elements, it's — it's wonderful.

它是——它是元素周期表的元素，它——它很棒。

Hydrogen has one proton, helium two, lithium three, and so on up the periodic table of elements.

氢有1个质子，氦有2个，锂有3个，按元素周期表上的元素排列顺序即可判断。

So here's the periodic table of elements you're used to seeing that you learned in your chemistry class.

所以这里是你习惯于看到的元素周期表，你在化学课上学到的。

But assuming you do, open it up and take a look at the periodic table of elements.

但假设您这样做了，请打开它并查看元素周期表。

Now, you have to go buy yourself a new $700 textbook because the periodic table of elements has just changed … again!

现在，你必须去给自己买一本价值 700 美元的新教科书， 因为元素周期表刚刚改变了… … 又一次！

Well if we haven't memorized it, we could look it up on the periodic table of elements, which we'll be dealing with a lot in this playlist.

好吧，如果我们还没有记住它，我们可以在元素周期表中查找它，我们将在这个播放列表中处理很多内容。