求求大佬,问问为什么nh2cl中的氮显 3价,而cl显 1价啊,是怎么判断的啊啊? 知乎 Template




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tomski求求大佬,问问为什么nh2cl中的氮显 3价,而cl显 1价啊,是怎么判断的啊啊? coloring