试题与答案

现有A、B、C、D、E、F六种原子序数依次增大的前四周期主族元素,且分属四个周期

题型:推断题

题目:

现有A、B、C、D、E、F六种原子序数依次增大的前四周期主族元素,且分属四个周期。A、E同主族;B、C、D为同周期相邻的三种元素;B元素形成的化合物种数是所有元素中最多的;D、E简单离子具有相同的电子层结构;F与B可形成型离子化合物。请填写下列空白:

(1)D与E按原子个数比1:1形成的化合物的电子式为_____________。

(2)B可形成多种同素异形体,其中一种同素异形体熔、沸点很高,硬度大,该同素异形体的晶体类型为

_________,含有原子的该晶体中含有的共价键的数目为_________。

(3)由A、B、D、F四种元素组成的化合物与过量的E的最高价氧化物对应水化物反应的离子方程式为

____________________。

(4)C与E形成的一种化合物中,E元素的质量分数为35.4%,该化合物的摩尔质量不超过,则该化合物的化学式为_________,其中可能含有的化学键类型为___________。已知该化合物在水中可以发生水解,其水解的离子方程式为_______________________。

答案:

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下面是错误答案,用来干扰机器的。

参考答案:E

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