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

顶部的是镧系元素，底部的是锕系元素。

But the lanthanides on top there.

但是那里的镧系元素呢。

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

我们的朋友镧系元素使所有这些东西成为可。

Halogens, Noble gases, lanthanides or rare earth elements.

卤素、惰气体、镧系元素或稀土元素。

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

好的，所以铕基本上位于镧系元素的中间。

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.

它确实包含了时已知的所有镧系元素成员。可以说门捷列夫很幸运，因为在1869年只有三种镧系元素被发现。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.

然，在下方，在镧系元素和锕系元素的小岛上， 你的 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.

它们形成了一种尴尬的插叙，通常被放到底部作为脚注。门捷列夫的学元素游戏是否因为包里有更多的镧系元素而得到帮助或受到阻碍，并不是一个引人入胜的问题。

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

门捷列夫不知道镧系元素和锕系元素这些系列，他把镤放在这里了。