a group of atoms that gives a chemical compound its characteristics, such as the ability to react with particular substances

Carbonyls and alkenes, two of the most common functional groups in organic chemistry, generally do not react with one another. 羰基和烯烃是有机化学中最常见的两个功能基团，它们之间一般不发生反应。

In Table 13.2 we saw the names of compounds that share functional groups. 在表13.2我们可以看到有相同功能基团的化合物的名称。