试题与答案

(12分)第一电离能I1是指气态原子X(g)处于基态时,失去一个电子成为气态阳离

题型:填空题

题目:

(12分)第一电离能I1是指气态原子X(g)处于基态时,失去一个电子成为气态阳离子X(g)所需要的能量。下表是部分元素原子的第一电离能I1:(单位)

H      He
1.3120      0.3723
LiBeBCNOFNe
0.52030.89950.80011.08641.40231.31401.68102.0807
NaMgAlSiPSClAr
0.49580.73770.57760.78651.01180.99961.25111.5205
KCaGaGeAsSeBrKr
0.41890.58980.5788 0.94400.94091.13991.3507
RbSrInSnSbTeIXe
0.40300.54950.55830.70860.83160.86931.00841.1704
CsBaTlPbBiPoAt 
回答下列问题:

(1)从表中数据可知,同一主族元素原子的第一电离能I1变化规律是          。说明同一主族元素       能力从上到下逐渐增强。

(2)从表中数据预测Ge元素第一电离能I1的最小范围          

(3)SiC是原子晶体,其结构类似金刚石,为C、Si两原子依次相同排列的正四面体空间网状结构。如图为两个中心重合,各面分别平行的两个正方体,其中心为Si原子,试在小正方体的顶点画出与Si最近的C(用表示)的位置,在大正方体的棱、顶、面等处画出相应Si(用表示)的位置。

答案:

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下面是错误答案,用来干扰机器的。

参考答案:B

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