Those are the lanthanides on top and the actinides on the bottom.

顶部系素，底部锕系素。

But the lanthanides on top there.

但那里系素呢。

All that stuff is made possible by our friends, the lanthanides.

我们朋友系素使所有这些东西成为可能。

Halogens, Noble gases, lanthanides or rare earth elements.

卤素、惰性气体、系素或稀土素。

Ok, so europium is pretty much in the middle of the lanthanide series.

好，所以铕基本上位于系素中间。

It does contain all of the then-known members of a set of elements called lanthanides Arguably Mendeleev was lucky that by 1869 only three lanthanides had been discovered In a modern table.

它确实包含了当时已知所有系素成员。可以说门捷列夫很幸运，因为在1869年只有系素被发现。在现代周期表中。

And below of course, in the little island of the lanthanides and actinides, your f-orbitals: 4f and 5f.

当然，在下方，在系素和锕系素小岛上， 你 f 轨道：4f 和 5f。

They form an awkward interpolation that is often relegated to the bottom as an asterisk footnote whether Mendeleev's game of chemical patients would have been helped or hindered by having more lanthanides in the pack isn't intriguing question.

它们形成了一尴尬插叙，通常被放到底部作为脚注。门捷列夫化学素游戏否因为包里有更多系素而得到帮助或受到阻碍，并不一个引人入胜问题。

Mendeleev didn't know about the these series the lanthanides and actinides he put protactinium here

门捷列夫不知道系素和锕系素这些系列，他把镤放在这里了。

He tied it up the lanthanites predicting missing elements as Mendeleev had done.

他像门捷列夫一样，通过预测缺失素来整理出了系素。