What's the definition of the covalent bond?

共价键的定义是什么？

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The relations of the covalent bond lengths calculated by the model agree with the empirical ones.

由此计算出来的共价单键、双键和叁键之间的键长关系基本符合共键长间的经验关系。

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Further study is needed before the origin of the covalent bond can be considered a settled question.

需进一步深入研究方能解决共价键的起源问题。

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What's the definition of the covalent bond?

共价键的定义是什么？

麻省理工公开课 - 固态化学导论课程节选

He said that the percent ionic character, and this is within a bond, not for a compound, for a covalent bond.

他提到离子百分数，是指一根键中，并非一个分子中。

麻省理工公开课 - 固态化学导论课程节选

So, in fact, yes, we did confirm that these covalent bond, at least in the case of hydrogen, we have confirmed by the numbers that we are at a lower energy state when we talk about the bonded atom versus the individual atom.

因此，事实上，是的，我们证实了共价键，至少在氢这种情况下，我们通过数据证实了,成键的原子处于能量更低的状态,当其与单个的原子相对比时。

麻省理工公开课 - 化学原理课程节选

Locklin and his colleagues sprayed the substance onto materials and exposed them to ultraviolet light, which causes a covalent bond with the host material.

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