Let's imagine this is the electron in its orbit.
想象一下，电子在它的轨道中。
Well, suppose I want to look at something like an electron in orbit here.
假如我想看到，轨道上像电子一样的东西。
An electron in the innermost orbit has the least energy.
最里面的轨道上的电子能量最低。
Let's suppose that the electron at first is in the normal orbit.
让我们假设电子起初在基态轨道上。
An electron moving in an excited orbit stays there only for a very short time.
电子在激发态轨道上只能逗留很短的时间。
An electron moving in an excited orbit stays there only for a very short time.
电子在激发态轨道上只能逗留很短的时间。
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