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

顶元，底锕元。

They are actually kind of crazy actinides are, uh, they contain all the elements that we make nuclear weapons out of.

它们实际上疯狂锕元，它们包含了我们制造核武器所需要所有元。

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

当然，下方，元和锕元小岛上， 你 f 轨道：4f 和 5f。

It’s also probably the only other actinide which has possibly routinely got its way into households which is that it’s also used in metal detectors.

它也可能唯一一种可能经常进入家庭锕元，因为它也用于金属探测器。