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

顶部的元，底部的锕元。

But the lanthanides on top there.

但那里的元呢。

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

们的朋友元使所有这些东西成为可能。

Halogens, Noble gases, lanthanides or rare earth elements.

、惰性气体、元或稀土元。

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

好的， 因此铕几乎位于元的中间。

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

当然，在下方，在元和锕元的小岛上， 你的 f 轨道：4f 和 5f。