OK, so we've got UV light here, and let's see what we can see, and we lose electrons, if that's what's happening.
好了,我们已经有了紫外光源,让我们来看看能观察到什么,如果那些事情发生了,我们将会失去电子。
Lithium has three electrons. If it loses two one remains. What is this formula telling us?
锂原子有三个电子,如果它失去两个,剩下一个,那么这个式子告诉了我们什么?
If helium loses on electron, what do we have?
如果氦原子失去了一个电子,我们得到了什么?
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