The website is overseen by a group of working physicists, but you don't need a Nobel Prize to join in the adventure of sub-atomic particles.

VOA: standard.2010.03.05

There was a lot of physics going on, but we didn't know a whole lot about atomic structure back in those days.

物理学在迅速发展，但在这之前并没有人对,原子结构有很全面的了解。

麻省理工公开课 - 固态化学导论课程节选

So, even though we don't have the lithium anymore, we still keep that atomic number 7 around.

尽管现在它不含锂了，但是作为原子量的七，还是在一定程度上保留了下来。

麻省理工公开课 - 化学原理课程节选

I can't explain this because classical physics doesn't work at atomic dimensions.

我不能解释这个,因为经典物理在不适用,就原子尺度而言。

麻省理工公开课 - 固态化学导论课程节选

And immediately it should probably come into your head that we don't actually have an atomic radius that we can talk about, right?

一提到这点你就应该立刻想到,我们并没有一个真正的原子半径,可以讨论，对吗？

麻省理工公开课 - 化学原理课程节选

So we have two electrons in our bonding orbital, but because we use the same rules to fill up molecular orbitals as we do atomic orbitals, so the Pauli exclusion principle tells us we can't have more than two electrons per orbital, so we have to go up to our anti-bonding orbital here.

所以在成键轨道上有两个电子，但因为我们用了和原子轨道时,用的相同的规则，所以Pauli不相容原理告诉我们,一个轨道上不能有两个以上的电子，所以我们需要填充到反键轨道上去。

麻省理工公开课 - 化学原理课程节选