如果出于市场调查或其他一些理由需要放一些选填内容,我们建议清晰地标注这些问题,而不是把必填内容标注出来。
If for marketing purpose or for some other reasons where optional fields are needed, we suggest to mark optional fields clearly instead of indicating the mandatory fields.
So in order to fill them, he would have to have eight electrons or an octet around the cubes.
因此为了填满它们,他必须放上八个电子或者说一个“八隅体“,在立方体周围。
The same thing when you're going from filling in the 2 s to putting that first electron into the 2 p.
当你填满,2,s,后再往,2,p,中,放第一个电子的时候就会发生这种问题。
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