2004/11/17 | 基[Radical]
类别(℃〖化学〗) | 评论(0) | 阅读(35) | 发表于 13:19
Originally, a chemical unit believed to function as a single unit and believed to be chemically inalterable. In modern usage, the term refers to a free radical, which is a chemical compound consisting of unpaired electrons which can bond to another compound at the site of the unpaired electrons.
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