“氮族元素”一章内容是元素化合物知识的重要内容.学生在学习过程中对这部分内容存在的疑问较多,为便于同学们学习时掌握,笔者对教学过程中学生所存在的疑难问题进行了较为系统的归纳分析.一、氮气有关疑难点分析1.N比P元素的非金属性强,为什么氮气却反而比白磷活泼性弱?答:根据元素周期律可知,氮元素的非金属性比磷元素强.而物质的活泼性与其分子内的 The content of the “Nitrogen Elements” chapter is an important content of the knowledge of elemental compounds. Students have more questions about this part of the learning process. To facilitate the students’ mastery of learning, the author finds it difficult to teach students in the teaching process. The problem has been systematically summarized and analyzed. 1. Analysis of nitrogen-related difficulties 1.N is more non-metallic than P. Why is nitrogen less viable than white phosphorus? Answer: According to the elemental cycle law, the nitrogen element is not known. Metallicity is stronger than phosphorus, and the activity of the material and its intramolecular