教材讲述氧族元素的知识是以硫元素的单质和化合物为代表展开的．教材又以硫元素的单质和化合物知识中的二氧化硫、硫酸为主要内容加以论述．因此,大量的氧族元素的知识只有在练习题中以信息题的形式出现．做好氧族元素的信息题,不仅可以获取氧族元素的更多知识,而且能提高学生运用化学原理处理信息、解答实际问题的能力．现归纳氧族元素的相关 The textbook’s knowledge of oxygen elements is represented by the elemental and chemical compounds of sulfur. The teaching materials also discuss sulfur dioxide and sulfuric acid as the main content of sulfur element and compound knowledge. Therefore, knowledge of a large number of oxygen elements only appears in the form of information questions in practice exercises. Doing a good job of information on oxygen elements can not only acquire more knowledge about oxygen elements, but also improve students’ ability to use chemical principles to process information and answer practical questions. Related to oxygen elements