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元素推断题主要考查元素周期表中“位、构、性”三者之间的关系及学生利用物质结构的性质进行综合推断的能力.该类题目综合性强,难度较大,所占分值较高.学生需要掌握短周期所有元素的结构特点、它们在元素周期表中的位置和性质以及掌握它们形成的化合物的性质,在此基础上综合分析,得到答案.
Elemental extrapolation questions mainly examine the relationship between “bit, structure, sex ” in the periodic table of elements and the ability of students to make comprehensive inferences by using the nature of the material structure. These topics are comprehensive, difficult, and account for Higher scores. Students need to grasp the structural characteristics of all elements of the short-term cycle, their position and nature in the periodic table, and grasp the properties of the compounds they form, and on this basis, a comprehensive analysis to get the answer.