那么我们有多少孤对电子呢？
So how many lone pair electrons do we have?
youdao
那么，哪个原子需要这对孤对电子呢？
So, which atom is in need of those lone pair electrons?
孤对电子对键能的影响不是原子间的效应。
The influence of lone pair on bond energy cannot be an interatomic effect.
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