Functional Groups ■官能团(Functional Groups): The atom or group of atoms that defines the structure of a particular family of organic compounds and,at the same time determines their properties Structural features that allow for classification of compounds into families The structural similarities in these compounds lead to chemical similarities ·官能团：有机分子中比较活泼、易发生化学反应的 原子或原子团 ●官能团：赋予有机物一类特征结构并决定其性质的 原子或原子团 Functional Groups 官能团（Functional Groups)： The atom or group of atoms that defines the structure of a particular family of organic compounds and, at the same time determines their properties Structural features that allow for classification of compounds into families The structural similarities in these compounds lead to chemical similarities 官能团: 有机分子中比较活泼、易发生化学反应的 原子或原子团 官能团: 赋予有机物一类特征结构并决定其性质的 原子或原子团