元素周期律、元素周期表知识一直是高考的热点知识,每年必考.2007年重庆理科综合试题中有一道无机推断题,考查的主要是元素周期律及元素周期表知识,出题角度新颖,具有很强的发散思维特性,值得大家研究. The periodicity of the elements and the periodic table of knowledge have always been the hot topics of the college entrance examination. Each year, we must take a test. In 2007, there was an inorganic inference question in the Chongqing science comprehensive examination. The main elements of examination were the elemental periodic law and the periodic table of knowledge. The novel angle was novel. Has a strong divergent thinking characteristics, it is worth everyone to study.