All the elements in the periodic table have a different affinity for electrons.

元素周期表所有元素对电子都有不同亲和力。

On the periodic table of the elements, Sn is the symbol for what?

在元素元素周期表上，Sn是什么符号？

In fact, they make up most of the elements in the periodic table.

事实上，它们构成了元素周期表大部分元素。

The transition metals are the metals in the middle part of the periodic table.

过渡金属元素指元素周期表间置金属元素。

They don't really get much more far off the periodic table than that.

它们在元素周期表确实没有处太靠后置。

And so your question about the periodic table is very interesting.

所以你提出关元素周期表问题非常有趣。

Chemists know all the elements on the periodic table.

化学家了解元素周期表里所有元素。

Let's say your chemistry teacher asks you to memorize a periodic table for example.

比如说，你化学老师让你记住一张元素周期表。

You could break down each line of the periodic table into a short story.

你可以把元素周期表每一行分解成一个小故事。

The race to extend the periodic table continues.

扩展元素周期表比赛仍在继续。

Now we have the entire periodic table.

现在我们有了整个元素周期表。

“Mendeleyev’s Dream” by Paul Strathern is the best book I've ever read on the periodic table.

保罗·斯特拉森《门捷列夫梦》是我读过关元素周期表最好书。

Yes, I asked which is the lightest element in the periodic table.

是，我问元素周期表最轻元素是什么。

And you should get used to just opening up that periodic table.

你应该习惯打开元素周期表。

I mentioned that uranium is the heaviest element in the periodic table, but which is the lightest?

我提到过铀是元素周期表最重元素，但哪个元素是最轻呢？

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，按元素周期表上元素排列顺序即可判断。

Well, what's the periodic table like at the beginning of the universe, the moment of Big Bang?

那宇宙初开，也就是宇宙大爆炸那一刻，元素周期表是什么样呢？

The periodic table is an organized display of all the chemical elements in order by atomic number.

元素周期表是所有化学元素按原子序数有序排列表。

You can see on the periodic table that's going to be H. It's going 1 atomic number.

您可以在元素周期表看到 H。它原子序数为 1。

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

所以这里是你习惯看到元素周期表，你在化学课上学到。