这些元素建立了“单原子分子、不反应”的特性。

They established their monatomic and unreactive nature.

youdao

我们已经可以使计算机在单碘分子和由几种原子组成的晶体管上运行，那么为什么不利用微小的DNA链来创建电子部件呢？

We’ve got computers that run on a single iodine molecule and transistors made of just a handful of atoms, so why not create electronic components out of tiny strands of DNA?

youdao

在先前的研究中得到其原子水平上的结构，精确的结构特性允许他们用激光脉冲瞄准目标分子，并且只持续千万一份之一秒以使分子处以单电子自旋状态。

That precise characterization allowed them to target molecules with laser pulses lasting for one-quadrillionth of a second, or just long enough to set single electrons spinning.

youdao

I would say with the aid of an energy level diagram explain the fact that helium is found as atomic gas and not molecular. How about this one?

我要说的是，在能级图的帮助下,可以解释氦气是单原子气体,而不是分子气体这一事实,那么这个呢？

麻省理工公开课 - 固态化学导论课程节选

So, in talking about covalent bonds, we should be able to still apply a more general definition of a chemical bond, which should tell us that the h 2 molecule is going to be lower in energy than if we looked at 2 separate hydrogen atom molecules.

那么，既然提到了共价键，我们应该还可以,给化学键下一个更普遍的定义,那就是告诉我们氢分子能量应该更低,与两个分开的氢的单原子分子相比。

麻省理工公开课 - 化学原理课程节选

We have either single atoms or molecules consisting of small numbers of atoms.

单原子或者分子,由很多很小的原子组成。

麻省理工公开课 - 固态化学导论课程节选