That happens because of space issues that you were asked to do that, because you can always assume that all of the core orbitals are already going to be filled.
这是出于空间的考虑,要求你这么做是因为,你总是可以假定所有的,芯电子轨道都已经填满了。
you could go like to a bar if you're 21 and if not, then
如果你满21岁可以去酒吧,如果不到的话……
So we can add three hydrogen atoms here, and fill in our other orbitals right here.
我们可以加三个氢原子到这里,填满其它的轨道。
That's twice the Michigan football stadium.
这些士兵可以坐满两个密歇根橄榄球场
There are festivals held in each city just for its own citizens and my guess is that when you could do that, when you felt that you could recruit a full colony from your fellow citizens in Corinth, let us say, that's what you did.
有些城市的节日只有当地居民才参与,当你觉得时候到了,可以从科林斯居民中,招满去殖民地的人,这就是你要做的
This should make a lot of sense, because we know that a hydrogen has 1 s as it's outer-most or valence orbital, so it can be filled up just with two 1 s electrons.
这也是很合理的,因为我们,知道氢只有,1,s,轨道,这就是它最外层的轨道或者说价轨道,因此只要两个,1,s,电子就可以将它填满。
So we actually only need two electrons to fill up the valence shell of hydrogen, remember that's because all we need to fill up is the 1 s.
我们其实只需要两个电子,就可以将氢的价壳层排满,要记得这是因为我们只需要排满,1,s,轨道。
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