These elements—samarium, gadolinium, terbium, dysprosium, lutetium, scandium and yttrium— are crucial elements for manufacturing key products used in semiconductor, defense, aerospace and green energy.

元素——钐、钆、铽、镝、镥、钪和钇——是制造半导体、国防、航空航天和绿色能源所用关键产品的关键元素。

And so you would think as we move across the transition metals, so let's say we're going across this period from scandium to zinc.

所以你会, 当我们穿过过渡金属时, 所以让我们说我们正在经历从闪族到锌的个时期。

How can you have got to your ripe old age as a chemist and never seen scandium?

你怎么活到了个岁数个化学爱好者却从未见过钪？

So if we're looking at scandium it's going to have 2 electrons in its 4s.

因此, 如果我们观察闪族元素, 它的4s中将有2个电子。

Scandium is an element which chemists usually ignore, I have never used scandium in any of my research.

钪是种化学家通常会忽略的元素，我在我的研究中从未使用过钪。