As such, it governs-among other things-the energy levels of an atom formed from negatively charged electrons and a positive nucleus.

就此而论，它控制由带负电荷的电子与正电荷原子核的形成的原子能级。

youdao

The total negative charge of the electrons is equal to the positive charge of the nucleus.

所有电子的负电荷，等于核的正电荷。

youdao

OK, so all I do is I take into account that I've got all the positive charge, whatever it is, it's a nucleus.

我做的全部是考虑，我得到所有的正电荷，无论是什么，都是一个核。

youdao

So, what we're looking at here is the force when we have two charged particles, one positive one negative -- here, the nucleus and an electron.

我们现在研究的是,一正一负俩个带电粒子之间的,作用力-在这里。

麻省理工公开课 - 化学原理课程节选

And so we have a positive charge in the nucleus which is given by the number of protons.

在原子核上,有很多质子聚集而形成的正电荷。

麻省理工公开课 - 固态化学导论课程节选

So even if we strip an atom of all of its electrons, we still have that same amount of positive charge in the nucleus.

所以即使把一个原子的所有电子都拿走,原子核还是带那么多的正电。

麻省理工公开课 - 化学原理课程节选

That means its nucleus has a stronger positive charge and that, in turn, means the electrons orbiting the nucleus are more attracted to it and travel faster, at roughly 60% of the speed of light, compared with 35% for the electrons orbiting a tin atom.

ECONOMIST: Einstein and car batteries