在一个原子的核内，中子和质子聚合在一起。

Neutrons and protons are bound together in the nucleus of an atom.

《柯林斯英汉双解大词典》

为了释放电子，必须使电子高速旋转而足以摆脱它们的原子核。

To free electrons, something has to make them whirl fast enough to break away from their nuclei.

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我们讨论的是概率，但我们说的是最可能的半径，离原子核更远。

We are talking about probability, but what we're saying is that most probable radius is further away from the nucleus.

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Diatomic mean it's di atomic, it's made up of two atoms, and homonuclear means that those two are the same atoms.

双原子意味着它是两个原子，它由两个原子组成，同核意味着这两个原子时相同的原子。

麻省理工公开课 - 化学原理课程节选

So where we had left off with was we'd fully discussed up to the point of considering homonuclear diatomic molecules, so molecules that both have the same nucleus.

我们上次,讲到了我们,已经讨论过同核双原子分子，也就是有相同原子和的分子。

麻省理工公开课 - 化学原理课程节选

Further, the nucleus is assumed to be the seat of the essential part of the mass of the atom, and to have linear dimensions exceedingly small compared with the linear dimensions of the whole atom."

进一步的，核被认为是,原子主要质量所在的地方，和整个原子线性尺度相比,核具有很好的线性尺度“

麻省理工公开课 - 固态化学导论课程节选