题目列表(包括答案和解析)
I.下面的虚线框中每一列、每一行相当于周期表的每一族和每一周期,但它的列数和行数都多于元素周期表。请在下面的虚线框中用实线画出周期表第1至第6周期的轮廓,并画出金属与非金属的分界线。
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I.下面的虚线框中每一列、每一行相当于周期表的每一族和每一周期,但它的列数和行数都多于元素周期表。请在下面的虚线框中用实线画出周期表第1至第6周期的轮廓,并画出金属与非金属的分界线。
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II.X、Y、Z、M、N为短周期的五种主族元素,其中X、Z同主族,Y、Z同周期,M与X、Y既不同周期,也不同族。X原子最外层电子数是核外电子层数的三倍,Y的最高价与最低价的代数和等于6。N是短周期主族元素中原子半径最大的非金属元素。
(1)X元素位于元素周期表第 周期,第 族;
N元素位于元素周期表第 周期,第 族。
(2)请写出下列反应的离子方程式:
N单质与氢氧化钠溶液反应:
(3)Y与Z相比,非金属性较强元素的原子结构示意图为 ,可以证明该结论的实验是(用离子方程式表示)
(4)请将X、Z、M、N元素原子半径从大到小排序:
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