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So, for example, for boron, 2s2 now we're dealing with 1 s 2, then 2 s 2, and now we have to move into the p orbital 2p1 so we go to 2 p 1.
举例来说对于硼，现在我们知道有1s2然后，现在我们必须,移至p轨道即。
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